Mire Bridge
Land-Swamp Forest (Rare)

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

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

B, Tap, Pay 1 life: Put a 1/1 black Horror creature token onto the battlefield.

2, Tap: Target land becomes a 3/3 green Snake creature until end of turn. It's still a land.

James Prescott