Volcano Hollow
Land-Swamp Mountain (Rare)

(Tap: Add B or R to your mana pool.)

Whenever Volcano Hollow becomes tapped, it deals 1 damage to you.

1, Tap: Target land becomes a 2/2 red Troll creature until end of turn. It's still a land.

Tap, Sacrifice a Swamp: Add BB to your mana pool.

John Grant West