Wurm's Tooth

Artifact, 2 (2)
Whenever a player casts a green spell, you may gain 1 life.
A wurm knows nothing of deception. If it opens its mouth, it plans to eat you.
Illus. Alan Pollack

Format Legality	Legal in Vintage, Legacy, Extended, Standard
Printings (4/35)	Magic 2010 (Uncommon) Tenth Edition (Uncommon) Core Set - Ninth Edition (Uncommon) Darksteel (Uncommon)