The Staff of Ainz Ooal Gown

{6}{u}: Your opponents can't cast spells or activate abilities of artifacts, creatures, or enchantments
until end of turn.
{6}{b}: Destroy target non-land permanent.
{6}{r}: Deal 4 damage to all creatures.
Ability costs of The Staff of Ainz Ooal Gown
cannot be changed by other sources. If you
control an Ainz Ooal Gown planeswalker, reduce
the cost of The Staff of Ainz Ooal Gown's
abilities by {5}.