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 - $6.60
LP - $5.30
MP - $4.00
HP - $2.70
DMG - $1.50