Jungle Shoal
Land (Rare)

When Jungle Shoal enters the battlefield, you lose 1 life unless you reveal an artifact creature card from your hand.

Tap: Add G or U to your mana pool.

Tap: Add 2 to your mana pool. Put Jungle Shoal on top of your library.

3: Jungle Shoal becomes a 2/2 green Snake creature until end of turn. It's still a land.

Ron Chan