Obsidian Grove
Land (Rare)

Obsidian Grove enters the battlefield tapped unless you sacrifice a multicolored permanent.

Tap, Pay 1 life: Add B or G to your mana pool.

1, Tap, Sacrifice Obsidian Grove: Draw a card.

BB, Tap, Sacrifice Obsidian Grove: Target creature gets -2/-2 until end of turn.

James Deschamps