Troll-Horn Cameo

Artifact, 3 (3)
{T}: Add {R} or {G} to your mana pool.¹
"I found a troll-horn fragment in the wooded foothills of Hurloon, and it keeps growing larger. I wonder, is the horn recreating itself or the troll?"
-Isel, master carver
Illus. Donato Giancola

Format Legality	Legal in Vintage, Legacy, MTGO Classic Banned in Extended, Standard
Printings (1/6)	Invasion (Uncommon)