( Hope you don't mind spoilers if you haven't watched Reborn Pt.1)

Even with four relics, a newly reborn Irene couldn't do the trick to defeat the Demon Warlock. Not when all his friends came out of the woodworks after their former chains were broken.

However, Ein had managed to convince the eight god like beings of absolute chaos to join the good side for once. Eight of the closest beings in the world. Who are also close to Irene/Aphmau and the four that choose to temporarily become relics to rid of the Demon Warlock.

And what could be stronger than 31 relics in one wielder willing to give their life?