Spinerock Moor
Land-Swamp Mountain (Rare)

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

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

3: Spinerock Moor becomes a 2/2 black Skeleton creature until end of turn. It's still a land.

Steve Nielsen