Nameless Song

Nameless Song is a song usable by the Sing command in the Final Fantasy series. It bestows status buffs on the target.

Final Fantasy Tactics
Nameless Song is used by the Bard, and bestows Reraise, Regen, Protect, Shell, and Haste.

Final Fantasy Tactics A2: Grimoire of the Rift
The Bard can use Nameless Song, granting a random status buff to the target.