Graven-land
Land (Rare)

At the beginning of your end step, if you didn't cast any spells this turn, Graven-land deals 1 damage to you.

Tap: Add R or W to your mana pool.

Put Graven-land on top of your library: Add 1 to your mana pool.

RW: Graven-land becomes a 2/1 red and white Shaman creature until end of turn. It's still a land.

Carl Critchlow