Man thing missed opportunity
Do you guys even read comic books? Man thing is huge! Also, he doesn't cause poison. He causes fear, panic and incineration. I mean, he melts people's face off! That's his whole thing! He can also teleport and he incredibly difficult to kill. This is such a huge missed opportunity to improve the mystic class. He should have some fear mechanic like Omega Red where when in close proximity the opponent builds passive fear debuffs that stack until they turn into an incinerate debuff or panic debuff that affects ability accuracy or power gain.