Godless Furnace
Land (Rare)

Whenever Godless Furnace becomes tapped, it deals 1 damage to you.

Tap: Add B or R to your mana pool.

Sacrifice Godless Furnace: Add B or R to your mana pool.

1R: Godless Furnace becomes a 1/1 black and red Horror Wizard creature with first strike until end of turn. It's still a land.

James Deschamps