Voice of Resurgence 227 (Double Masters)

Whenever an opponent casts a spell during your turn and when this creature dies, create a green and white Elemental creature token with "This token's power and toughness are each equal to the number of creatures you control."

NM - $2.90
LP - $2.30
MP - $1.80
HP - $1.50
DMG - $1.50