Isle Ruins
Land-Island Swamp (Rare)

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

Whenever Isle Ruins becomes tapped, it deals 1 damage to you.

2U, Tap: Put a 1/1 blue Merfolk creature token with flying onto the battlefield.

BB, Tap, Sacrifice Isle Ruins: Put a -1/-1 counter on target creature.

Ron Chan