Niggross
Not again. Important note for future writers. No one (except fools) presented with unlimited power intentionally nerfs themselves for no good reason. It's just not consistent with human nature as we currently know it and detracts from the story. It's like birthing a racehorse only to knee cap it for some reason. It would have been better if the MC wishes came with a limiter or unintentional disadvantages to keep things balance.
The End (完成, Ji Endo): Medaka is capable of learning Abnormalities and completely mastering them, to the extent that she can use them to one hundred and twenty percent of their capability, becoming more skilled with them than even their original owners. This ability allows her to learn any skill quickly, from simple skills like baseball to the impossible feats performed by the members of the Thirteen Party. Medaka has learned super ball usage from Unzen, Auto-Pilot (automatic movement) from Takachiho, hidden weapon techniques from Munakata, accelerated healing from Koga, syringe usage from Naze, Reading Minds (the ability to receive electrical waves) from Yukuhashi, and Weighted Words (the ability to send electrical waves) from Oudo. As her Abnormality has developed, Medaka can now learn abilities based off of information or word-of-mouth and can now copy Minuses, successfully learning Five Forks from only a secondhand description. Throughout her time at Hakoniwa, Medaka has also managed to learn Encounter, Scar Dead, Ice Fire, Unknown Hero, Mother's Task, Book Maker, All Fiction, and a portion of Ajimu's quadrillion skills,[415] of which she has demonstrated one hundred Trample Skills.[416] However, The End does have its limits. While Medaka can learn skills that exceed her physical capabilities, she cannot copy the physical capabilities of the original skill holder. Medaka is unable to stop herself from learning an Abnormality when she experiences it. She is also unable to learn styles.[417] Observation (観察, Kansatsu): Very similar to Maguro's Analysis, it is the method through which The End copies other abilities. In Altered God Mode it is "perfected" and allows her to see the processes of actions broken down to allow easier observation and copying.