Keldon Palace
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, Keldon Palace deals 1 damage to you.

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

Douglas Moeller