Aerie Ouphes

Creature - Ouphe 3/3, 4G (5)
Sacrifice Aerie Ouphes: Aerie Ouphes deals damage equal to its power to target creature with flying.
Persist (When this creature is put into a graveyard from the battlefield, if it had no -1/-1 counters on it, return it to the battlefieldunder its owner's control with a -1/-1 counter on it.)¹
Illus. Jesper Ejsing

Gatherer Card Rulings [Nov 2009]

• 8/1/2008: If Aerie Ouphes has no -1/-1 counters on it when you sacrifice it to activate its first ability, persist will return Aerie Ouphes to the battlefield with a -1/-1 counter on it before that ability resolves. The ability will check the power of Aerie Ouphes at the time you sacrificed it, not the power of the returned Aerie Ouphes (which is actually a new object with no relation to its previous existence).

Format Legality	Legal in Vintage, Legacy, Extended Banned in Standard
Printings (1/9)	Eventide (Common)