Flashback (XC2)

Flashback is Disc 5, Track 10 on the Xenoblade2 Original Soundtrack and Disc 10, Track 10 on the Xenoblade Chronicles Original Soundtrack Trinity Box.

It plays during the fights against phantasms of, , and and  in the First Low Orbit Station. It also plays in the following cutscenes:
 * Herald almost loses control again in the Spirit Crucible Elpys during her Blade Quest, The Calm and the Storm.
 * Perceval refuses to kill Bradly in his Blade Quest, Failure And Success.
 * Perun and Dr. Castofari verbally spar in her Blade Quest, Eternal Spirit.
 * Praxis begs Theory not to fight the party in their second Blade Quest, Blade-Sharp Memory.