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