( : Add
: Add  or
 or  to your mana pool.)
 to your mana pool.)
Academy Karoo enters the battlefield tapped unless you control two or more colorless permanents. 
 ,
,  : Target land becomes a 2/2 blue Cephalid creature until end of turn. It's still a land.
: Target land becomes a 2/2 blue Cephalid creature until end of turn. It's still a land.
 ,
,  , Sacrifice Academy Karoo: Prevent all combat damage that would be dealt this turn.
, Sacrifice Academy Karoo: Prevent all combat damage that would be dealt this turn.