Arid Bank
Land (Rare)

Arid Bank enters the battlefield tapped unless you control five or more monocolored permanents.

Tap, Pay 1 life: Add R or W to your mana pool.

1, Tap, Sacrifice Arid Bank: Draw a card.

1W: Arid Bank becomes a 0/4 red and white Soldier creature with defender until end of turn. It's still a land.

Mark Deschamps