Talk:Overlord Volume 9/@comment-27012362-20151007163742/@comment-27010445-20151007175909

@Cybberd1

The Death Knight that were summoned in Vol. 1 is permanent because Ainz using corpse. The temporary one you said he summoned it using an item (sword). So the condition for summon a permanent monster is by using a corpse.

If you heard about the side story about the Death Knight. It's the same one he summon in Vol. 1.