(: Add or to your mana pool.)
Academy Cavern enters the battlefield tapped.
, , Sacrifice Academy Cavern: Return target creature you control to its owner's hand.
, , Pay 1 life: Put a 1/1 black Horror creature token onto the battlefield.
: Add 
or 
to your mana pool.), , Sacrifice Academy Cavern: Return target creature you control to its owner's hand., , Pay 1 life: Put a 1/1 black Horror creature token onto the battlefield.
