(: Add or to your mana pool.)
Krosan Vents enters the battlefield tapped unless you control an enchantment.
: Krosan Vents becomes a 2/1 green and blue Snake creature until end of turn. It's still a land.
: Add 
or 
to your mana pool.): Krosan Vents becomes a 2/1 green and blue Snake creature until end of turn. It's still a land.
