Grassy Wastes enters the battlefield tapped unless you pay .
: Add or to your mana pool.
Put Grassy Wastes on top of your library: Add to your mana pool.
, Sacrifice Grassy Wastes: Target creature gets +2/+2 until end of turn.
.
: Add 
or 
to your mana pool. to your mana pool. , Sacrifice Grassy Wastes: Target creature gets +2/+2 until end of turn.
