(: Add or to your mana pool.)
Unstable Cavern enters the battlefield tapped unless you pay .
, : Target red creature gets +1/+1 until end of turn.
, : Target land becomes a 3/3 black Horror creature until end of turn. It's still a land.
: Add 
or 
to your mana pool.)
., : Target red creature gets +1/+1 until end of turn.
, : Target land becomes a 3/3 black Horror creature until end of turn. It's still a land.
