(: Add or to your mana pool.)
Grass-Cavern enters the battlefield tapped.
: Grass-Cavern becomes a 2/2 green Stag creature until end of turn. It's still a land.
: Add 
or 
to your mana pool.)
: Grass-Cavern becomes a 2/2 green Stag creature until end of turn. It's still a land.
