Aux, the Obsidian Spire

Aux, the Obsidian Spire enters the battlefield tapped.

{t}: Add {r},{b}, or {u}to your mana pool.

{b/r},{t}, Sacrifice a land you control: Aux, the Obsidian Spire deals 3 damage to any target.

{u/b}{u/r}, {t}, Sacrifice a creature you control: Exile target permanent. Targer player sacrifices a permanent.

"Beyond time lies an unfathomable point converging at rupture." — Orath, the Mana Seeker