Hickory Vents
Land (Rare)

Hickory Vents enters the battlefield tapped unless you reveal a multicolored card from your hand.

Tap: Add G to your mana pool. If you played a land this turn, Add U to your mana pool instead.

2: Hickory Vents becomes a 2/2 green Snake creature until end of turn. It's still a land.

Carl Chippy