(: Add or to your mana pool.)
Boiler-Barrens enters the battlefield tapped unless you pay 1 life.
, , Sacrifice Boiler-Barrens: Target creature gets -2/-2 until end of turn.
: Add 
or 
to your mana pool.), , Sacrifice Boiler-Barrens: Target creature gets -2/-2 until end of turn.
