Hallowed Foundry enters the battlefield tapped unless you sacrifice a creature.
: Add or to your mana pool.
Put Hallowed Foundry on top of your library: Add to your mana pool.
: Return Hallowed Foundry to its owner's hand.
: Add 
or 
to your mana pool.
to your mana pool. : Return Hallowed Foundry to its owner's hand.
