Toxic Crayon

Toxic Crayon has a toxic body and a toxic attitude, mainly because it erases a small part of itself every time it uses its superpower: to smear toxic crayon wax on people, places, and things. 

Toxic Crayon
Made of wax
Plus poisons, sickness, heart attacks
A C.H.A.O.S Minion small but potent
It weakens foes from folks to rodents