Magmaroth 
Creature — Elemental
At the beginning of your upkeep, put a -1/-1 counter on this creature. Whenever you cast a noncreature spell, remove a -1/-1 counter from this creature.
Legality
standardNOT LEGALpioneerLEGALmodernLEGALlegacyLEGALvintageLEGALcommanderLEGAL