Debris Bosk enters the battlefield tapped unless you pay .
: Add or to your mana pool.
Sacrifice Debris Bosk: Add or to your mana pool.
, : Target player puts the top card of his or her library into his or her graveyard.
.
: Add 
or 
to your mana pool. or to your mana pool., : Target player puts the top card of his or her library into his or her graveyard.
