Susano'o, God of Storms

Eminence - Whenever you cast a noncreature
spell, you may pay {2} to create a copy of target
spell. If target spell is a historic permanent,
you may create a nonlegendary token that is a
copy of that permanent for as long as Susano'o,
God of Storms is in the command zone or on the battlefield.
When Susano'o enters the battlefield, return all
other nontoken, nonland permanents you control
to their owner's hand.