Eh mago when fighting eduan not once states anything like that though. Same for aubrion who even says he was currently stronger than in the past when he faced urek. I don't think their powers are nerfed inside. The tower is dark place hence POL is affected.
If we follow your opinion then it just means that darkness power is way way weaker than POL because with POL mago is way way way more powerful than with darkness powers because if darkness isn't affected then it means that POL is affected yet still its way more powerful than darkness is , because without POL if mago had all her darkness powers then it just means darkness is just way way weaker than LIGHT powers and it seems the case . just look at mago how pity she was without ureks light ? remember ? where is her darkness powers or pentaminums powers ? nowhere because its nothing compared to light and without light they are weaklings and i haven't seen magos darkness powers because she cannot use anything without having light .
UREK is affected because light is > darkness and darkness isn't affected because there is nothing to be affected because its weak power compared to light because whole unvierse was created by light not by darkness and all beings with light > darkness , penta may be more powerful with darkness not because darkness itself is more powerful but he uses weapons like eduan does . so POL > Darkness surely it was displayed to us when mago was fighting with and without light .
But he is much stronger than Urek
Nowhere it is says that penta is above urek that's a ballony , you ppl overestimate penta when he will be revelead you will change that mind , you overestimate him because of what ? because he had defeated shinies ? according to aubrion now he is stronger right ? and urek defeated much more powerful version than penta had ever fought so ? what does it say to you ? urek while being nerfed still kicked much more powerful aubrion than penta kicked ?
urek kicked all those guys already like penta did so ? how did you get there that penta is stronger than urek ? penta maybe even weaker than urek while he is limited , penta wasn't created to defeat urek he was born to defeat other shinies and urek is much different than those guys and prove me wrong
plus you guys don't think or don't realize one fact that urek isn't nerfed in shinsoo domain because shinso is strong , its contrary shinsoo is weaker and it just seems powerful because its enormous size, tower is enormous and it generates shinsoo from all over the place from x y z from all over and if you are in that domain you may have problem to use your original powers because it affects your own power and in independent space shinsoo will be rendered as a puny power and that's surely .
its like if axiser of shinsoo will be plunged into darkness domain or light domain that'd render shinsoo axisers as weakling
Story itself tells you that urek is strongest being in the tower yet you think its a marketing ? you will be disappointed surely , you cannot give me one place that renders pentaminum above urek , because penta can exit and enter it doesn't mean shit and it doesn't render him to be more powerful than urek , gustang also knows how to get out and it was hinted to us and its way easier than we've thought , if you can prove to me that penta is above urek i'm here and would love to hear from you