Hollow Ruins enters the battlefield tapped unless you pay 2 life.
: Add or to your mana pool.
Sacrifice Hollow Ruins: Add or to your mana pool.
, : Exile target Specter, then return it to the battlefield under its owner's control.
: Add 
or 
to your mana pool. or to your mana pool.
, : Exile target Specter, then return it to the battlefield under its owner's control.
