Anchor Karst
Land-Forest Island (Rare)

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

Whenever Anchor Karst becomes tapped, it deals 1 damage to you.

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

GG, Tap, Sacrifice Anchor Karst: Destroy target artifact.

Justin Deschamps