Krosan Retreat enters the battlefield tapped.
: Add or to your mana pool.
Sacrifice Krosan Retreat: Add or to your mana pool.
: Krosan Retreat becomes a 1/1 green and blue Stag creature with flying until end of turn. It's still a land.
: Add 
or 
to your mana pool. or to your mana pool.
: Krosan Retreat becomes a 1/1 green and blue Stag creature with flying until end of turn. It's still a land.
