Araki Syndrome
Araki Syndrome appears when character in anime "forgets" one or multiple of their powers that could presumably solve situation their in, or make it easier to fight some villain.
Person1: bruuh he could defeat this enemy in the matter of seconds if he would use same move he did 1 season ago...
Person2: bruh leave him alone, he suffers from Araki Syndrome
Person2: bruh leave him alone, he suffers from Araki Syndrome