Ixion's Soul Light

As an additional cost to cast this spell, tap one
untapped white creature you control.
Exile target non-artifact creature. Its controller creates a 1/1 white Skeleton creature token.
Flashback {6}{w} (You may cast this card from your graveyard for its flashback cost and any additional
costs. Then exile it.)
Ixion, though centuries dead, still answers prayers.