Overgrown Fortress enters the battlefield tapped.
, Pay 1 life: Add or to your mana pool.
, , Sacrifice Overgrown Fortress: Draw a card.
, : Target Bird gets +1/+1 until end of turn.
, Pay 1 life: Add 
or 
to your mana pool.
, , Sacrifice Overgrown Fortress: Draw a card., : Target Bird gets +1/+1 until end of turn.
