How bout this one?
akhlys magic
It summons poison and can control it
Move1: The ultimate serum; it heals most poison and some wounds
Move2: Silent injection; it shoots a extremely tiny particle of poison that quietly explodes and begins to expand, its like a sniper with poison.
Move3: acidic liver; it summons a tower of acidic poison that can be controlled freely.
Move4: self sacrifice; the user uses a poison that removes the skin and flesh of their hands but the poison greatly strengthens the muscle strength of the user and power speed etc.
Move5 [Ultimate move]; grand seal of the acidic mark; the user makes a poison strong enough to melt everything, the move will form a giant humanoid out of this poison (40 ft tall) and will control it like a giant mech.
Move6: poison control; just poison