Jellal is decent in durability. He was unscathed by Neinhart's nuke (he became unconscious because of injesting too much water; he wasn't injured by the attack at all, not even a scratch). He was unscathed by Kiria's roar in the spin off as well. Is that Erza level durability? Nah, no feats to support that, but he's decent enough. Not too shabby, mid tier at least in durability.
Cobra is Alverez base Gajeel level, and Midnight scales a bit higher (since Midnight always >= Cobra)
And August took them out without breaking a sweat.
Yes August is immune to magic lol. That's the point. The guy is broken, human Eileen isn't doing any better against him.
August basically stomped Gildarts dude. Gildarts was fine? He used up his only source of damage and it didn't do jack to August. And that too, basically only using physical attacks. August used crash for moving around, but fought Gildarts in a physical battle lol. If August actually used magic, like against Crime Sorciere, surely Gildarts would've been wrecked.
Anyway, August would've stomped him regardless, since he already demonstrated that he could tank Gildarts' strongest attack without immunity; and now Gildarts doesn't even have a way to harm August.
It was large enough to engulf mountains. But sure it's featless. I can agree there, though the implication was that it would've wrecked Natsu
Enchantment itself isn't holder, so no, he copies. He can't copy if the SOURCE ITSELF is holder (like cards or keys for eg). Hax works, by default, unless it's a tier above. He copies her magic.
Yes, Eileen can enchant a sword. August will proceed to nullify that enchantment, making it a normal sword again.
Gildarts >> Laxus in all stats, and Laxus in Alverez was easily above Erza, let alone an injured Erza. Erza overwhelmed human Eileen in combat. Human Eileen isn't touching August in combat.
What makes you think Gildarts is slow lol. By portrayal, he's on a different compared to the rest of FT guild (Except DF Natsu of course). And feats don't really disagree here. At best you can make the argument that feats are ambiguous since it's hard to compare, but nothing really disproves his portrayal.
Jellal is easily faster than Laxus. who is faster than Erza. Nobody among good guys beat Jellal in speed, except maybe DF Natsu. I mean, the guy is basically just pure speed and attack power, with versatility and some hax mixed in. That's what puts him in top tier, since his durability and physical strength is mediocre (compared to Laxus and Erza).
Laxus, Gildarts etc dodge that attack. It's just a typical dragon attack. Erza was caught off guard. Yes, Dragon Eileen > August in physical combat, I agree.
But Deus Sema was broken by Erza with broken bones, August easily breaks it. Come on dude.
Human Eileen has no feats comparable to August. She has magic power comparable to August, but other stats are quite mediocre.
August no diff'd Crime Sorciere (Jellal > Erza), stomped Gildarts. Human Eileen struggled against Erza. August >> human Eileen in attack power, speed and physical combat.
I'm pretty sure that Zeref and his closest aides knew that Eileen was a dragon, August was still seen as the strongest Spriggan. The portrayal is clear IMO
With Dragon Slayer magic (which he has had plenty of opportunity to copy - from Natsu and Eileen), August can easily defeat dragon Eileen.
But if we remove slayer advantage, they're equal IMO. Dragon Eileen is better in physical combat, while August is better in hax and magic.
jellal was fine after getting a bad matchup with august. remember him against aconlogia. so august did no real damage to jellal
i will agree with cobra=gajeel only and only if you believe erigir can give a zeref a fight. and and alverzec jura can give alverzec laxus (with no cancer) a fight.
jellal is not pure speed. he never was. this fan made stuffs. jellal has some speed magic, laxus has some speed magic. erza has some speed magic. nothing special here man
jellal has never shown to be faster than laxus or erza just like laxus has never shown to be faster than erza. again fan made
i am talking about attack power. so no dodging. dragon irene one shot gildarts. august cant to do anything near that
Yes, Dragon Eileen > August in physical combat you call that attack power mate, and you might wanna add couple more >
Deus Sema is dragon irene top tier move. stronger than her causal claw swipe.
portrayal wise august needs his top tier move to stalemate it.
feats wise, he just watches as it strikes and annihilate him and his mother.
he just doesnt have attack power of that freaking claw, how is he matching something much higher
actually i dont know why you keep on saying human irene is mediocre while august only has feats where his hax works. him soloing crime sorie is as good example of power as jacob clapping his hands of vanishing laxus and jellal and gildarts.
i will give you a hypothetical scenario
we have two people jacob and his boyfriend Max. they are equal in power, in stats (the springgan jacob from the manga). except jacob has clapping hax, max has fire punches

scene one
jacob vs laxus, jellal and gildarts
jacob claps laxus, jellal and gildarts all disappear and dies
Scene two
Max vs laxus, jellal and gildarts
what would be the result?
this is my point. august performed well against the above, because it was a bad matchup. only his hax carried him. other than that he has only one durability feat (gildart prosthetic attack) and no speed feat, keeping up with gildarts speedwise is nothing special unless you are claiming gildarts speed>jellal speed
jellal is not stronger than erza,nor is laxus (could you show panels where laxus is shown stronger than erza)
august never stomped gildarts, he was above gildarts but only because gildarts was fighting without magic (could you show panels where august stomping gildarts)
erza never overwhelmed human irene (could you show panels of erza overwhelming)
why would zeref tell anyone anything? do these people normally sit and chat about things like this. i mean i am trying to think of a chat where brandish finds out about irene being a dragon and serena dragon lacrimas

and brandish said they are equal.
the portrayal was that they are equal. with no mention of august copy ability and irene dragon
dragon slayer magic cant be copied nor can you learn it. dragon must be involved
base dragon slayer isnt taking out his equivalent dragon form
natsu<dragon natsu
feat you want to compare
human irene causally handle erza (erza is equal to laxus)
august handle gildarts (who cant use his magic)
comparable gildarts without magic vs enhance laxus
for durability
august takes gildart prosthetic hit to the face, we dont know whether that is gildarts strongest move or not. august seems not damaged but then kills himself
human irene ignores erza, full focus on a loli. enhanced erza (think enhanced laxus) with full charge strikes human irene, she doesnt even move.
durablity is comparable
i think the problem is you think erza is too weak. common problem
without pof
current erza = current laxus (maybe slight variation)
alverzec erza = alverzec laxus
there is no mention of huge jump for erza. laxus red lightening of alverzec is pof and should be compared to alverzec erza pof moment. if you want to say erza is weaker than provide some actual feats where erza failed and laxus prevailed
now if we allow august hax to work on human irene then irene hax also works on august.
so irene either turns him into a rat or separate his magic fom him. while august tries to nullify and copy her magic.