Wooded Seafloor
Land-Forest Island (Rare)

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

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

1: Wooded Seafloor becomes a 2/2 blue Illusion Cephalid creature until end of turn. It's still a land.

John Chan