Faerie Grove
Land (Rare)

At the beginning of your upkeep, Faerie Grove deals 2 damage to target creature you control.

Tap: Add G or U to your mana pool. Faerie Grove deals 2 damage to you.

2G: Faerie Grove becomes a 2/2 green and blue Fish creature with trample until end of turn. It's still a land.

Steve Briclot