Blood Reef enters the battlefield tapped.
: Add or to your mana pool.
Sacrifice Blood Reef: Add or to your mana pool.
: Blood Reef becomes a 2/2 blue Illusion creature until end of turn. It's still a land.
: Add 
or 
to your mana pool. or to your mana pool.
: Blood Reef becomes a 2/2 blue Illusion creature until end of turn. It's still a land.
