Flagstones Springs
Land-Mountain Plains (Rare)

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

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

RW: Flagstones Springs becomes a 2/1 white and red Knight creature until end of turn. It's still a land.

Aleksi Critchlow