Grass-Hollow enters the battlefield tapped.
: Add or to your mana pool.
Sacrifice Grass-Hollow: Add or to your mana pool.
: Grass-Hollow becomes a 2/2 black and green Beast creature with trample until end of turn. It's still a land.
: Add 
or 
to your mana pool. or to your mana pool.
: Grass-Hollow becomes a 2/2 black and green Beast creature with trample until end of turn. It's still a land.
