(: Add or to your mana pool.)
Grassy Cavern enters the battlefield tapped.
, : Target land becomes a 2/2 green Snake creature until end of turn. It's still a land.
, , Sacrifice Grassy Cavern: Put a -1/-1 counter on target creature.
: Add 
or 
to your mana pool.)
, : Target land becomes a 2/2 green Snake creature until end of turn. It's still a land., , Sacrifice Grassy Cavern: Put a -1/-1 counter on target creature.
