Moonring Hollows
Land-Forest Island (Rare)

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

At the beginning of your upkeep, Moonring Hollows deals 2 damage to target creature you control.

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

GG, Tap, Sacrifice Moonring Hollows: Destroy target artifact.

Greg Argyle