Discussion Fairy Tail vs Spriggan Twelve

[WoWfan]

for Lucy vs Jacob: Horologium doesn’t really protect anyone indefinitely, just once and is gone for a while, Leo gets taken out by Jacob with relative ease and could sever Lucy’s head with one knife throw, and UM doesn’t really guarantee a win as the individual can still get up to attack afterward.

Erza vs. Neinhart: Nakagami armor drains magic power rapidly so it 1-2 strikes and I am not sure it works on all historias or just one at a time.

Invel’s abilities have proven to be above Gray’s DeS and required Gray to succumb to the darkness to be strengthened. Invel’ side magic is not simply creating ice, but case thing’s to freeze, the purest of ice magic. Slayer magic does not negate the special abilities of any elements they encounter, like Natsu, Wendy, Gajeel and Laxus.

Mira vs Bloodman: Mira did say that she does have difficulty to take over Etherius, to what degree, it seemed they have to be in a weakened state to do so.

Wendy vs Ajeel: it is one sided, Ajeel just slaughters Wendy even without needing sand powers, Dehydration is not an ailment, it is the evaporation of water from within the target.

Makarov vs Brandish: that is not how that works, it is stated countless times that Spriggans are on another level compared to Makarov, she can turn herself into the size larger than a mountain which is larger than Makarov. Light can’t oneshot if they are weaker, I mean even Sting for example could eat his magic or be unharmed by it anyway.

Gajeel/Erza vs Walh: Walh finds weaknesses of both of them, and can even adapt to both of them, Walt would incinerate Gajeel and Erza with Etherion, he is even slightly stronger than Laxus without the use of his lightning magic.

Mirajane/Gray vs Larcade: Larcade may have a disadvantage against at least one of them, but all he need do is use hunger and they eat each other.

Gildarts/Makarov/Laxus vs Serena: Gildarts struggled against even Historia Serena, he would still struggle even against full power Gildarts, Makarov is inconsequentia, Laxus would have his lightning eaten by Serena.

Lucy/CSK vs Dimaria: not sure that is how CSM works, otherwise Lucy would be able to move in stopped time, so Dimaria one shots without even time stop, he only summoned himself because of a law broken by Leo and Lucy insulting him, but to what extent of influence is inclear, likely just to teleport them to another place or something. No evidence she can transfer all zodiac powers into her Nor does Capricorn have shown to use HS post Tenrou Island.

Entire Guild vs Irene/August: Mavis can’t use FH because of the risks involved and going out of control, even partial Demon Natsu would still likely loss so they would still be taken out.

Natsu vs Zeref: Flames of Savage emotions may tempo down Zeref, but would not really be permanent as he would get back up moments later

 

[Cosmicstar]

for Lucy vs Jacob: Horologium doesn’t really protect anyone indefinitely, just once and is gone for a while, Leo gets taken out by Jacob with relative ease and could sever Lucy’s head with one knife throw, and UM doesn’t really guarantee a win as the individual can still get up to attack afterward.

Erza vs. Neinhart: Nakagami armor drains magic power rapidly so it 1-2 strikes and I am not sure it works on all historias or just one at a time.

Invel’s abilities have proven to be above Gray’s DeS and required Gray to succumb to the darkness to be strengthened. Invel’ side magic is not simply creating ice, but case thing’s to freeze, the purest of ice magic. Slayer magic does not negate the special abilities of any elements they encounter, like Natsu, Wendy, Gajeel and Laxus.

Mira vs Bloodman: Mira did say that she does have difficulty to take over Etherius, to what degree, it seemed they have to be in a weakened state to do so.

Wendy vs Ajeel: it is one sided, Ajeel just slaughters Wendy even without needing sand powers, Dehydration is not an ailment, it is the evaporation of water from within the target.

Makarov vs Brandish: that is not how that works, it is stated countless times that Spriggans are on another level compared to Makarov, she can turn herself into the size larger than a mountain which is larger than Makarov. Light can’t oneshot if they are weaker, I mean even Sting for example could eat his magic or be unharmed by it anyway.

Gajeel/Erza vs Walh: Walh finds weaknesses of both of them, and can even adapt to both of them, Walt would incinerate Gajeel and Erza with Etherion, he is even slightly stronger than Laxus without the use of his lightning magic.

Mirajane/Gray vs Larcade: Larcade may have a disadvantage against at least one of them, but all he need do is use hunger and they eat each other.

Gildarts/Makarov/Laxus vs Serena: Gildarts struggled against even Historia Serena, he would still struggle even against full power Gildarts, Makarov is inconsequentia, Laxus would have his lightning eaten by Serena.

Lucy/CSK vs Dimaria: not sure that is how CSM works, otherwise Lucy would be able to move in stopped time, so Dimaria one shots without even time stop, he only summoned himself because of a law broken by Leo and Lucy insulting him, but to what extent of influence is inclear, likely just to teleport them to another place or something. No evidence she can transfer all zodiac powers into her Nor does Capricorn have shown to use HS post Tenrou Island.

Entire Guild vs Irene/August: Mavis can’t use FH because of the risks involved and going out of control, even partial Demon Natsu would still likely loss so they would still be taken out.

Natsu vs Zeref: Flames of Savage emotions may tempo down Zeref, but would not really be permanent as he would get back up moments later

Jacob can't take Leo out with ease. Leo negated his stealth magic and was only sent away because he made lewd remarks on Lucy body. Ergo plot and comedy was used to get rid of a weakness for Jacob. Jacob attack against Leo barely fazed him. Horologium time limit during the first couple of arcs in FT was 15 minutes thus he would be able to negate Jacobs power for a minimum of 15 minutes. Also without PIS Lucy isn't going to stand there without reacting to something being thrown at her. Urano Metria would have 100% taken him out. Let's get something straight stupidity worked more against Lucy and Natsu during their battle against Jacob rather than Jacobs stupidity against him.

Invel's magic is Ice and we already seen Gray channel and mold it. Beyond that due to PIS Gray as a DeS never used his ability to eat his element. Ice lock should have been eaten. Invels coldness doesn't effect Gray due to his resistant to coldness. Without PIS this should have been an easy win for Gray.

Nothing states Nakagami drains magical power rapidly. Erza said it cost a lot of magic however we saw her requip it after a long battle against Kagura and Minerva. Also it doesn't matter Erza speed would allow her to take all the Historia out and then attack Nienheart in a reasonable time frame. She doesn't need to do it all at once. One slice and the Historia disappears.

Mirajane already took over the Etherious demons so I don't see her having a problem with Bloodman when we already seen her do it to the same species with the same powers.

Wind is an established weakness of Ajeel and dyhradtion is a body illness. It is the lack of moisture in one body. It would take a lot of PIS to pass off as a non ailment.

Nothing suggest you have to be as strong as a Spriggan to take them out. Magical power doesn't mean said character is extremely durable. Brandish only real threat is being able to use mass manipulation on others which Makarov titan and transformation magic should logically negate. He making herself huge doesn't matter because Cancer Lucy was destroying her even with the size difference.

Erza magic is to versatility for Whal to constantly find weakness to. All Erza has to do is requip a weapon that negates whatever weakness whal created. That is literally what the Rijinshuu and Strauss siblings did when defeating the Whal bots. Erza can manipulate 100 weapons at once. Also so far all of Whal bots and himself has been made of metal and I don't see why Gajeel wouldn't be able to eat him.

Gildarts easily overpowered Historia Serena and stated maybe if he was in his original body he would be a bigger threat. IDK where you got the idea Gildarts struggled when we legit see him demolish Serena on panel with a punch. Then later goes on to fight August.

First off we have seen the CSK summon himself and it was established spirits can summon themselves. The fact it doesn't happen more often is just because Hiro doesn't write it to happen more often but once again it has been shown and established as possible. Second off the CSK showed time magic in the loke arc and it was established that Celestial spirit realm time flows differently and has deep connections to the eclipse gate and the timelapse. Thirdly we see the CSK transfer Aquarius power to Lucy and we saw the spirits transfer magic among themselves when Leo gave Capricorn his magic. Thus nothing suggest the CSK couldn't grant Lucy any of the other spirits powers. ALso Human Subordination is something we seen Capricorn use it hasn't been established as not being his power we just haven't seen him use it since Tenrou island. However we haven't seen Capricorn much since Tenrou island. The first time we saw Capricorn in battle since Tenrou island was in 100yr quest during his battle with Mimi and that was just h2h.

You are taking Mavis comment out of context. The uncontrollability only applies to Etherion not FH itself. You have to let this go people have already explained this to you.


Flames of Savage emotions, Dragon force, Igneel power all of these have defeated some form of Zeref. It was stated Igneel flames would kill Zeref. Dragon force Natsu completely obliterated Zeref and he was only able to survive it thanks to FH+the Time lapse. Flames of Savage emotions demolished FH Zeref. So pick whatever one you want Zeref gets destroyed.



My issue with you post is you are using CIS and PIS to make Fairy Tail lose. PIS and CIS doesn't just affect the antagonist they also affect the protagonist.

 

[WoWfan]

he can if he wanted to, Leo was taken out but a measly explosion before, I doubt that someone stronger wouldn’t do the same, and yet Loki did not even do anything after one attack and just stood there. 15 minutes is more than enough time for Jacob to murder Lucy. She couldn’t dodge something thrown at her by Jacob, nope, if it didn’t take out Angel right away, then I doubt it would do the same with Jacob, it was his personality that allowed Natsu and Lucy and upper hand temporarily

Invel’s magic is freezing hence attacking with spontaneous freezing anywhere, he can even stop Gray’s attacks with ease, Gray can’t eat his own ice, don’t know what you mean by that, his mind was sealed, he can’t block their special abilities, Gray said that he still felt cold, there is a limit to ice wizards you know.

https://v2.mangapark.net/manga/fairy-tail/i1628713/7 we only saw her wear it once with Ajeel and that was for a split second, that did not seem the case when she fought them before as they managed to react to her and fight coordinatingly, one historia, we only see Erza disperse one spell with the armor.

we only know she could take them over in a weakened state after the battle with Tartaros, was saw her struggled extremely to even do so with one who is weaker than Bloodman.

wind has a limit for what it can do for Ajeel, not it is not, it is an inadequate intake, not by means of illness, you have to prove it is based on some sort of disease, that is just silly to think otherwise.

yes you do as even main characters stated she has more power than Makarov, and Makarov was convinced he had no chance against them. He was even going to die by Ajeel even in giant form. It actually does mean they are durable as they can put it to defensive capabilities. Not really as she can just simply shrink any of his organs to nonexistence and that ends that. Brandish was stated to hold back, not relevant.

Erza’s versatility is still limited to what she uses right away, and Walh’s ability to find weakness is not limited to magic wise, but physical and mental weaknesses too, so she will very magic be a maid for a weakness Jellal definitely, they switched partners, Erza takes time to summon that many weapons, and all the while Wahl would just blast them with an etherion blast from a distance Or one shot Gajeel as he was physically stronger than Laxus.

Gildarts still struggled and got damaged by Historia Serena, by contrast he would even be in bigger trouble too, you can see from the damage Gildarts sustained on him with blood too.

for CSK it is a special case especially when he doesn’t have a key and requires a destruction of a gold key, plus the last time he someoned himself Space was distorted, that was not time stop, nothing shows it https://v2.mangapark.net/manga/fairy-tail/i1628459/6-2 . Just because time flows differently in the CSR doesn’t mean they can sense any time distortions in other worlds iirc, when he was intentionally summoned to fight, it did not happened, so the first time was different. Human Subbordnation belongs to Zoleo, not Capricorn, when he died, the magic died with him, that is because Zoleo was using it himself while possessing Capricorn that is it, no, we have seen him during the training arc before the GMG And again with the second movie where Licy uses her dress which was stated to negate hypnosis attacks.

Zeref stated that as well, two of the smartest wizards in FT, it would still be uncontrollable not by just Etherion, and I have counted how they think otherwise. The only explanation is that Mavis herself can’t control it if unleashed.

Igneel’s power did not defeat Zeref nor would it have likely done so, Savage Flames may have temporarily downed Zeref but he would have been fine in a moment, Dragon Force did not defeat him, That statement was without proof as Zeref would have asked Igneel to kill him back then. yet his body remained in tacked by Savage Flames which is stronger than Dragon Force, so by transitive properties, DF does not defeat Zeref. Time Lapse is different from FH, only power that could kill Zeref was END.

Majority about those situations are not CIS or PIS, you seem to be using misinformation for those situations and overestimation to say FT wins regardless.

 

[Cosmicstar]

CIS= When a character can do something to better their chances at winning or in the situation in general but choices not to for some dumb or weird reason. Example: Lucy sending Loke away who can negate Jacob Stealth magic due to making a lewd remark on Lucy nakedness despite being a serious battle. Another example is Mavis an Immortal not using Fairy Law despite being a war.

PIS= When plot either nerfs or recons something to fit the narrative. Also when the plot makes illogical and irrational decisions without any real basis.

Also Let me address some points:

• Brandish having more magical power than Makarov doesn't mean anything. Jacob had more magic power than Lucy and Marin and both can negate his magic. Same with Wendy and Irene. Levy was able to undo Bloodman curse. Elfman and Lissana were able to defeat Ajeel. Etc. As I pointed out logically his Titan magic which allows him to control the size of his body parts and his transformation magic which can transform body parts should have allowed him to negate Brandish mass manipulation being used on him.
• I don't know why you are trying to argue Invel doesn't use Ice when it was established he does as he mentions Ice attacks multiple times from ICE LOCK and Heavenly ICE armor. Can Invel freeze things? Sure but that is irrelevant as Gray has resistance towards his cold via his Ice make that was shown and stated. Add in Gray posses the same DeS abilities as Silver and DeS can eat ice. So without PIS there is no reason Gray couldn't eat Invel ICE LOCK. Also Gray and Juvia went against his command and killed themselves so it wouldn't be hard for Gray to have went against Invel command and ate the Ice.
• Actually the only demon we know she struggled with was Sayla. She took over Hellcore with ease. She is much stronger now though so without PIS I don't see why she would struggle against Bloodman. It is established she can use Takeover on Etherious. Bloodman is an etherious. The best argument you can make without PIS or CIS coming in is Mirajane has a high difficulty fight trying to take Bloodman over. Once again no reason she shouldn't be able to take him over.
• It was never stated Human Subordination wasn't Capricorn magic or solely Zoldeo magic. This is all speculation. Considering Leo knew Capricorn used Human subordination but didn't know Zoldeo possessed him it reasons to logically stand it is Capricorns magic.
• Lucy isn't going to just stand around while a knife is thrown at her that she 100% saw coming. She has dodged Bullets, punches, attacks, etc with greater speed. Also at best the knife would have pierce her arm it wouldn't have taken her head off. Jacob was exaggerating.

To close my point is this, to try to argue Fairy Tail stood no chance against the Spriggan is being completely dismissive of their feats and power they had access to in order to justify the idea that the Spriggan should have destroyed them. You create excuses as to why certain things wouldn't happen by adding PIS or CIS to it. Sure you can create a Scenario in which the Spriggan wins and demolished FT but that isn't the ONLY scenario possible.

 

[WoWfan]

yet Loke did not stop Jacob's stealth before, he would not contribute to combat as Jacob could tank Natsu's attacks too and react to his attacks, Lucy's easily embarrassed so she doesn't want anyone to see her, even her allies, For Mavis, she was still afflicted by Curse of Ankseram, and she cannot afford to care about anyone, so Fairy Law which targets those that she sees as her enemies would be the last thing she wants to do since she doesn't care about anyone would target FT too.

• For Brandish, that was basically just her magic only limits, that does not take away the strength of Spriggans over Makarov, Wendy was slaughtered by a Spriggan, there are things as counters to a degree, again, counters for Elfman and Lisanna, Makarov can't control the size of something where it is shrunken to nonexistence, there is no statement that Titan magic negates this.
• He stated rather than create ice objects he freezes everything, that includes freezing the air and becoming ice, https://v2.mangapark.net/manga/fairy-tail/i1628889/5, so ice is a by product of his freezing, so while it may replenish Gray's magic it will not help him reach the level of Invel since he can't eat absent of heat. Ice make cold resistance has limits as he only adapts to one cold place when training, and Invel can freeze over ice which is colder than what Gray can handle, again, DeS can resist ice attacks, Invel can still overpower them with relative ease, it is not PIS, Slayers cannot resist the special abilities of elements they are attuned to, this was established since Phantom Lord arc, with Natsu not able to resist the cold or smell of certain special flames, or Gajeel who was still stabbed by Swords who have script magic which allows them to slice and pierce his metal, or God Slayer Magic which are stated to be on a level above Dragon Slayer magic so they can bypass their resistance/immunity, Ice Lock is no different as it is mind control and Gray has no immunity to that, twice with ice magic too, he may have resistance, but not enough to break free from without killing themselves which would break the spell.
• Well Hellcore was not really a demon as it has Demon Genes and half dead demons, not the same thing, it is only known she could take over when they are near dead, that is all, and her take over is Alegria, which was destroyed by the CSK, which would still be the same thing as being dead or near dead for her to take over, so again, wouldn't be able to.
• Yes it was, Zoldeo is the original and only known holder of Human Subordination, Leo could have read up on it and was analyzing the battle why everyone was affected and he was not, so that would, no, because when Zoldeo left Capricorn to possess Leo, he then had the Human Subordination magic which means it is not Capricorn's spell. https://v2.mangapark.net/manga/fairy-tail/i1628614/11.
• Lucy isn't going to just stand around while a knife is thrown at her that she 100% saw coming. She has dodged Bullets, punches, attacks, etc. with greater speed. Also at best the knife would have pierce her arm it wouldn't have taken her head off. Jacob was exaggerating.
• you sure? https://v2.mangapark.net/manga/fairy-tail/i1628868/21, it is logical that Jacob throws a knife faster than bullets, actually, piercing something with great enough force can cause objects to break apart from one another, and Natsu was the one to come in and save her and used his fire powers to melt the knife before it hurt him which he was known to stopped bigger bladed weapons before with just his arm without heat powers.

I disagree with that majorly because of Spriggan's personalities, teamwork and their powers being matched up by wrong enemies to be exploited. It is simple as that, you just need to not (respectfully) misinterpret or reread the context of those examples you bring up to their full.

 

[Axiomus]

That could be just magic power, and FH has Space Time properties, not a regular magic powered attack, Going all out for Zeref with FH means his attack would not lose any fire as it would just be replenished endlessly. Which is warping space time with Natsu‘s flame, and that is beyond his control to not be burned himself by it and his soul, it actually does, it is the lack of the ability to provide conscious limitation of impulses and behavior as a result of overwhelming emotion, just like Natsu not putting a limit on his fire, which has been the case as Prolyusica stated had he developed a Magic tumor. Iced Shell is a cost, not a exceeding limit, not the same, Natsu could not control his powers in the sense of controlling the heat of his flames. Not really as Zeref was going to be fine in a bit as he said he underestimated him so all of his magic was not burned away, just FH, Natsu has the combined power of Seven DS, Acno was motion sick, paralyzed and lost his magic immunity. Zeref scales to Phoenix, simple as that, it doesn’t matter what he shows or not, appearance does not matter, it would be much worse with space time warping had they gone any further with heat at that temperature which would create a black hole. Well considering that he was still a dragon after he was defeated makes it clear that Natsu did not have anything to do with the Merc losing his power would still likely have something to do with Whiteout since he still has no magic power and considering the Girl with Glasses and Merc talked the results afterward, but now that I think about it, if not, It could be because of his flames that are from Ignia which is stated to burn anything, where as with Zeref it was right away at the point of his defeat that FH was burned away, since Savage flames is basically reality warping.

Please, use periods...I beg of you. Anyways:

It was Fairy Heart's magic power. And it doesn't matter. Zeref went all out with his final attack. He used everything, both his own magic power and Fairy Heart's, in his final clash with Natsu. Either way, Natsu defeated FH Zeref. Even if Ankhseram's curse healed Zeref's wounds, it wouldn't have restored his magic power. Zeref would have just been a regular human being moving forward. Natsu still had enough power to fight Acnologia along with the other Dragon Slayers, this is before he was enchanted with 7DS.

Losing control of your powers means you can't control it. That's not what's happening here. Natsu didn't lose control of his fire. He just burned himself with it because it's hotter than what his fire resistance can handle. The fact that Natsu only burned his hands meant that he could still control his fire. If he lost control of his fire, it would just spread and burn his entire body. Like an actual out of control fire would. The fact that Natsu could control the trajectory and shape of his flames meant he never lost control. And no, Natsu didn't "lose control of his heat". He just made his flames as hot as they possibly could get, because that's the only way he could win against Zeref.

Merc losing his power had absolutely nothing to do with White Out, because Faris explicitly stated that it was something she didn't want. Faris was planning to use Mercphobia's power to fight Ignia. Natsu burned away Mercphobia's power. Mercphobia may have had enough power to transform into a human one last time, but that's about it.

Okay, and both pheonix and Zeref scales below Acnologia. Pheonix's supposed planet-busting is pure hype given by fodders. Flames of Emotion can't reality warp. It can burn magic and time-itself, whatever that means. That's not reality warping.

 

[WoWfan]

I do use periods but whatever, It would not restore FH at least but woul restore him to normal to be able to fight again, but Mavis got in the way. There is no proof that he would be a normal person, that is just assumption, actually now looking at it, he would logically still have his magic and possibly FH considering that Natsu’s soul is still fine since his soul was not incinerated in the attack too. that doesn’t matter if he had enough magic, he would still fight Zeref again had Mavis not stepped in. Uh, yeah, that is definitely what it means you lose control of it, Yu can’t control it, that is definitely what it means by not being able to control it, that is why wizards practice so magic doesn’t let them dictate the user, no the fact that he was burning at all means he didn’t have control over his flames, he just had to shut off his flames, that is different, there was no trajectory or shape, it was a fire punch which is the opposite of what those two are, you are thinking of his battle with Erigor, which the heat burned him as it was losing control of it. She wanted to help Merc by erasing his power, what she didn’t want and didn’t know at the time was that Merc would be controlled, which is what happened in the end, as it was still the effects of White Out. No, it’s planet busting is made by Eclair who is intimately connected to the Phoenix, so if anyone would know better, it would be her. Save Flames do warp reality by warping time, it is a known phenomenon known as Energy Stress Tensir which is the stress of energy like heat placed on space time fabric which the more intense the heat is the greater the distortion.

 

[Axiomus]

I do use periods but whatever, It would not restore FH at least but woul restore him to normal to be able to fight again, but Mavis got in the way. There is no proof that he would be a normal person, that is just assumption, actually now looking at it, he would logically still have his magic and possibly FH considering that Natsu’s soul is still fine since his soul was not incinerated in the attack too. that doesn’t matter if he had enough magic, he would still fight Zeref again had Mavis not stepped in. Uh, yeah, that is definitely what it means you lose control of it, Yu can’t control it, that is definitely what it means by not being able to control it, that is why wizards practice so magic doesn’t let them dictate the user, no the fact that he was burning at all means he didn’t have control over his flames, he just had to shut off his flames, that is different, there was no trajectory or shape, it was a fire punch which is the opposite of what those two are, you are thinking of his battle with Erigor, which the heat burned him as it was losing control of it. She wanted to help Merc by erasing his power, what she didn’t want and didn’t know at the time was that Merc would be controlled, which is what happened in the end, as it was still the effects of White Out. No, it’s planet busting is made by Eclair who is intimately connected to the Phoenix, so if anyone would know better, it would be her. Save Flames do warp reality by warping time, it is a known phenomenon known as Energy Stress Tensir which is the stress of energy like heat placed on space time fabric which the more intense the heat is the greater the distortion.

Natsu burned away Zeref's magic, including Fairy Heart. The exact same way he burned away Mercphobia's power, who is stronger than Zeref. Zeref would have been reduced to the level of a regular human even if he did recover. Natsu didnt burn away all of his soul in the first place. We know this because he still had his soul immediately after defeating Zeref. This is not the case with Zeref's magic, or at least Fairy Heart. We know this because FH is infinite, and if there was even a drop of FH's magic left, Zeref could just rewind time. He couldnt.

Again, Natsu clearly had full control of his flames. Yeah, there was a trajectory them. It was contained to Natsu's fists. If the flames were out of control, they would spread. They didnt.

No, lol. Faris didnt want to help Merc by erasing his power. She wanted to use his power to fight the other God Dragons. Natsu coming in and burning away Merc's power was something she explicitly said ruined her plans.

Eclair is fodder. Doesn't matter if she's intimatedly connected with Pheonix. She's still fodder that has no idea what Acno tiers are and arent capable of, and Pheonix is below Acno.

 

[WoWfan]

he did not, if anything it would just be just FH, Zeref stated that he would be fine and that Natsu underestimated him, which means that Natsu did not burn his magic, and since Natsu's soul was not incinerated, that would be the cause too since incineration is the complete destruction of something with heat and fire, where as simply burning is harming something with heat or flames, and because he still has his soul, Zeref still has his power. Zeref was still recovering especially from something that can warp reality. Natsu had no control over the flames that were burning him up, there was no trajectory meaning there was a distance from origin to destination, it would have to leave his fists. they were spreading as we saw the Guild Hall being destroyed in the process. Of course she did not, but that was not the point, her White Out makes his magic maximum or zero, It was never explicitly stated that Natsu burned Merc's magic, that he was just defeated and moved onto FT for her original plan, because they would be able to beat Aldoron since FT defeated Merc. It doesn't matter, since she is intimately close to the Phoenix she would know exactly just how powerful of a threat the beast is that it can destroy the world the knowledge of Zeref and Acno is not required, for her to know the power output of the Phoenix.