Grass-Marsh
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, Grass-Marsh deals 1 damage to you.

2G, Tap: Regenerate target land.

1, Tap: Target land becomes a 2/2 blue Shapeshifter Merfolk creature until end of turn. It's still a land.

Mark Schuler