Cascade Keep enters the battlefield tapped unless you pay .
: Add or to your mana pool.
Sacrifice Cascade Keep: Add or to your mana pool.
: Cascade Keep becomes a 2/1 blue and red Illusion creature until end of turn. It's still a land.
.
: Add or 
to your mana pool. or to your mana pool.: Cascade Keep becomes a 2/1 blue and red Illusion creature until end of turn. It's still a land.
