Garthanos
Arcadian Knight
The idea that a target is amnesiac is a great tool turn the enemy into a monster and let them ravage their allies another offensive head on the battlefield .... they made the power useful in a different way,ie another not actually a limit.Like a lot of things that people seem set on bending over backward to make useless because they think they're too powerful... why not just ban Polymorph or the use of it on allies?
It can't be a genre concern because the berserker mode isn't archetypical to this type of shapeshifting