Deathly Glen
Land-Island Swamp (Rare)

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

At the beginning of your end step, if you didn't cast any spells this turn, Deathly Glen deals 1 damage to you.

1BB, Tap, Sacrifice Deathly Glen: Target player discards a card.

2, Tap: Target land becomes a 3/3 blue Crab creature until end of turn. It's still a land.

Steve Argyle