Flying
When this creature enters, exchange control of this creature and up to one target creature an opponent controls. If you don't or can't make an exchange, sacrifice this creature. This ability still resolves if its target becomes illegal.
Whenever a nontoken creature you control enters, you may pay . If you do, create a token that's a copy of that creature, except it has haste and "At the beginning of the end step, sacrifice this permanent."
Enchant creature
Enchanted creature has ": Create a token that's a copy of this creature, except it has haste. Exile that token at the beginning of the next end step."