Ugyldig, Devourer

Hexproof, This spell can't be countered.
When Ugyldig, Devourer enters the battlefield, destroy all creatures, then exile all creatures in all graveyards until it leaves the battlefield. Its power
and toughness are equal to the total power and toughness of all creatures exiled by it.
{5}: Exile target creature in a graveyard or on the battlefield. You may put a creature exiled by
Ugyldig, Devourer onto the battlefield under your control. It is a black zombie in addition to its
other types.