Dragonskull Steppe
Land (Rare)

When Dragonskull Steppe enters the battlefield, you lose 2 life unless you reveal a White card from your hand.

WB, Tap: Add BB, BW or WW to your mana pool.

3: Dragonskull Steppe becomes a 2/2 white Knight creature until end of turn. It's still a land.

Allan Tedin