Premature Burial

You may pay 8 life rather than pay Premature
Burial's mana cost.
When Premature Burial enters the battlefield,
return target creature in your graveyard to the
battlefield under your control and attach
Premature Burial to it. Whenever Premature
Burial becomes unattached from a creature,
sacrifice that creature.
{1}: Attach Premature Burial to target creature.