Mistveil Valley enters the battlefield tapped unless you sacrifice a creature.
: Add or to your mana pool.
Sacrifice Mistveil Valley: Add or to your mana pool.
, Sacrifice Mistveil Valley: Target creature gets +2/+2 until end of turn.
: Add 
or 
to your mana pool. or to your mana pool., Sacrifice Mistveil Valley: Target creature gets +2/+2 until end of turn.
