Sunken Ruins
Land (Rare)

Sunken Ruins enters the battlefield tapped.

Tap: Add G or U to your mana pool.

Tap: Add 2 to your mana pool. Put Sunken Ruins on top of your library.

2G: Sunken Ruins becomes a 2/2 green and blue Illusion creature with trample until end of turn. It's still a land.

Christopher Grant West