Caldera Pyremaw 73 (Commander: Tarkir: Dragonstorm)

Flying Whenever you cast an instant or sorcery spell, put a +1/+1 counter on this creature. Then this creature deals damage equal to its power to target opponent.

NM - $6.40
LP - $5.10
MP - $3.80
HP - $2.60
DMG - $1.50