Eyes of the Stars

When Eyes of the Stars enters the battlefield,
look at the top X cards of your library, where X
is the number of Auras you control. You may
reveal an Aura card from among those and put it
into your hand.
Enchanted creature has ''Whenever you reveal an
Aura card, you may create a token that's a copy
of it enchanting that creature. Exile that token at
the beginning of the next end step.''