Goblin Vents
Land (Rare)

When Goblin Vents enters the battlefield, you lose 2 life unless you reveal an enchantment card from your hand.

Tap: Add 1 to your mana pool.

Tap: Add U or R to your mana pool. Each opponent gains 1 life.

1U: Goblin Vents becomes a 1/1 blue and red Beast creature with flying until end of turn. It's still a land.

Lars Moeller