User blog comment:ShonenChicoBoy/Shonen's Regimen and Tonic: April 2015/@comment-136273-20150417110210

One more comment regarding overpowered characters. There are two types of description I'd like to briefly discuss:


 * "one of the most powerful beings in existence", "can best any of one's peers/superiors", "is considerably stronger than one's peers", etc.
 * Such statements convey "oh me character iz so speshull" or "I'm better than thou". They're fine in a fanfiction of yours, but when the cast consists of multiple characters controlled by multiple people, saying flat out that you're so superior to everyone doesn't sound appealing.
 * "extremely powerful", "highly skilled", "seasoned", "masterful", etc.
 * No comparative statements there, or very vague at most. You not only communicate that the character in question is powerful but you manage to do that without claiming/boasting/pretending that you're so superior to everyone and their mother. Particularly when you're not supposed to.

Slight tweaks in accordance with the latter category would go a long way to balance out the cast.