Hystrodon 266 (Onslaught)

Trample Whenever this creature deals combat damage to a player, you may draw a card. Morph {1}{G}{G} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.)

NM - $1.90
LP - $1.50
MP - $1.50
HP - $1.50
DMG - $1.50