Copperline Hollow
Land-Swamp Forest (Rare)

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

Copperline Hollow enters the battlefield tapped unless you sacrifice a land.

2G, Tap: Regenerate target nonbasic land.

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

Steve Palck