Waterveil Depths
Land-Island Swamp (Rare)

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

Waterveil Depths enters the battlefield tapped unless you control four or more artifact creatures.

U, Tap, Sacrifice Waterveil Depths: Return target creature you control to its owner's hand.

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

Mark Sweet