Relinquished, the Sacrifice

As an additional cost to cast this spell, pay half
your life, rounded down.
Whenever Relinquished, the Sacrifice enters the battlefield or attacks, you may exile target
creature an opponent controls.
Relinquished has toughness equal to the total toughness of all creatures exiled with it. As long
as Relinquished has ten toughness or greater, it
has hexproof.
{t}: Return all creatures exiled with Relinquished
to the battlefield under your control.