Anchor Grave
Land (Rare)

Anchor Grave enters the battlefield tapped unless you control two or more creatures.

When Anchor Grave enters the battlefield, put a land you control on the bottom of its owner's library.

Tap: Add UB to your mana pool.

UB: Anchor Grave becomes a 2/1 blue and black Illusion creature until end of turn. It's still a land.

Douglas Briclot