Murmuring Shrine
Land-Plains Swamp (Rare)

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

Murmuring Shrine enters the battlefield tapped unless you reveal a planeswalker card from your hand.

1BB, Tap, Sacrifice Murmuring Shrine: Target player discards a card.

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

Eric Sweet