Cascading Epiphanies

Put all cards you own in exile on the bottom of
your library in a random order, then exile the
top five cards of your library face down and
create five 1/1 white Spirit creature tokens with
flying. Those creatures gain "When this creature
deals combat damage to a player, choose a card
you own in exile at random and reveal it. You
may cast that card without paying its mana cost.