Spinerock Swamp
Land (Rare)

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

R, Tap: Add BB to your mana pool.

B, Tap: Add RR to your mana pool.

B, Tap, Sacrifice Spinerock Swamp: Target player gets a poison counter.

James Guay