Erispheria

Deathtouch, Indestructible, Hexproof, Vigilance.
When Erispheria, Goddess of Chaos comes
into play, destroy {x} permanents.
Erispheria's power and toughness are equal
to 1+ the total mana cost of all permanents
destroyed through her ability.
{x}{r/w} {t} Destroy Target Permanent with cost
equal to or less than {x}