Phoenix Pinion

The Phoenix Pinion (フェニックスの羽, Fenikkusu no Hane) is a recurring item in the Final Fantasy series. It revives one ally similar to the Phoenix Down, but has other uses as well.

Final Fantasy IX
The more Phoenix Pinions in your inventory, the more damage Eiko's Phoenix Eidolon will do, and the more likely it is that Phoenix will spontaneously appear and revive the party when annihilated.