(: Add or to your mana pool.)
Unstable Caves enters the battlefield tapped.
, : Target land becomes a 3/3 red Beast creature until end of turn. It's still a land.
, , Sacrifice Unstable Caves: Target player discards a card.
: Add 
or 
to your mana pool.)
, : Target land becomes a 3/3 red Beast creature until end of turn. It's still a land.
, , Sacrifice Unstable Caves: Target player discards a card.
