Exile target creature you control, then return that card to the battlefield under its owner's control. If it's a Spirit, put a +1/+1 counter on it.
4/8/2016 Essence Flux checks whether the creature is a Spirit after it has returned from exile.
4/8/2016 Auras attached to the exiled creature will be put into their owners’ graveyards. Equipment attached to the exiled creature will become unattached and remain on the battlefield. Any counters on the exiled creature will cease to exist.
4/8/2016 If a creature token is exiled, it ceases to exist. It won’t be returned to the battlefield.
4/8/2016 If a double-faced card is exiled, it will return with its front face up.