These are Kanshou and Bakuya-different iterations that Arches Alter (from FGO) uses, along with the variation of his normal Noble Phantasm, now “Unlimited Lost Works”.
Music: Anima Ataraxia -FGO-
Composer Keita Haga
Music: EMIYA -Time alter-
Composer: sumiisan, James Harris, Toshimichi Isoe.