So a unique mechanic is reason for it to not exist? No one else has it because that's how you make different characters. No one else has poison, hell, no one has for the entire series. Should we remove them from FANG?
Poison doesn't make the opponent stumble slowly across the screen and back while Fang backdashes for no reason so you are wrong.
I am mostly ok with the move, but it should only work in the corner.