Talk:Overlord Volume 06/@comment-86.73.33.19-20151017124033/@comment-27012362-20151017143043

The artifact is capable of casting a 10th tier spell. Ulbert (Demiurge's creator) wanted to find a world class item that summoned an infinite amount of demons, the item got patched so Ulbert tried to make his own imitation which he gave up on after realizing that you could only active 1 artifact at a time. Ainz gave this failed creation to Demiurge as his consolation for giving up the artifact which used to belong to Ulbert.