Aikotu, Spellweaver of Tarkir

This creature has flying if it is the only creature
you control.
Instant and Sorceries have Rebound.
Whenever this creature attacks, exile the bottom
3 cards of your library. You may cast non-land/
non-creatures from your exile as if they had flash
until the end of combat, and you can cast them
without paying their mana cost.
At the end of your turn, put all non-rebouned
cards in exile on the bottom of your library in a
random order.