Serpentine
Creature — Wurm
Landfall — Whenever a land you control enters,
Augment 
(, Reveal this card from your hand: Combine it with target host. Augment only as a sorcery.)
Legality
standardNOT LEGALpioneerNOT LEGALmodernNOT LEGALlegacyNOT LEGALvintageNOT LEGALcommanderNOT LEGAL