I am guessing before the mind experiments were being done in humans, they were experimenting with other qualities too, and Gimpy was a victim of experimentation of giving humans plant-like abilities, I belive Gimpy's power is mimicking plants in some way, she healed Yor before so maybe when she's on her ligther state she's similar to a medicinal herb and when she's on her danker state she's a poisonous herb!
She could also just have been a normal survivor of war being experimented on contrary of Anya that was born in the lab
I am guessing before the mind experiments were being done in humans, they were experimenting with other qualities too, and Gimpy was a victim of experimentation of giving humans plant-like abilities, I belive Gimpy's power is mimicking plants in some way, she healed Yor before so maybe when she's on her ligther state she's similar to a medicinal herb and when she's on her danker state she's a poisonous herb!
She could also just have been a normal survivor of war being experimented on contrary of Anya that was born in the lab