Provided by Projectmoon
Source: https://youtu.be/F2otr7kCgho (33:03 - 35:01)

Library of Ruina - Kether Battle 1, 2, 3

It's a nice touch-up, but I I like the older version of the 1st and 2nd phase, 3rd phase is brilliant.

Roland Boss - Library of Ruina Ost

From Library of Ruina Soundtrack. By Project Moon. Does not belong to me. All intellectual properties belong to their rightful owners. Uploaded from YouTube. 

Link below:
https://m.youtube.com/watch?v=yyDMMFxImrA

Lobby - Library of Ruina OST

library of ruina 「early battle1-3」

Reupload of an extended version of the keter tracks
Mp4 taken from 산우 on youtube

Kether Battle

boombox kappa