Boiler-Graveyard enters the battlefield tapped unless you sacrifice a Zombie.
: Add or to your mana pool.
Sacrifice Boiler-Graveyard: Add or to your mana pool.
: Target creature loses all landwalk abilities until end of turn.
: Add 
or 
to your mana pool. or to your mana pool.: Target creature loses all landwalk abilities until end of turn.
