This isn't the theme of Chevalier Credo, but rather the theme of 18 Ereshkigal Lords and their barrage of Beelzebub's Balls melting the entire raid in mere 3 seconds
My first run of the raid was a run I hosted without backup because I knew it was just gonna get bursted the f out by Eresh without a chance to listen to the new BGM, and man am I glad I did because I got to fully enjoy this peak OST
Unironically sounds like it could transition into Encounter of Destiny from Megadimension Neptunia. Which makes sense considering who composed that track. Love hearing Narita use a choir.