Talk:Death Knight/@comment-26979572-20160306161420/@comment-200.2.177.134-20160306225513

His special skills let him create the undead without any mana cost,but this doesn't mean he can't create more undead.He is a overlord and has necromancer as job level that specialize in that area. There must be few high level spells that allow him to create undeads.Just like Shalltear that created a vampire using a tier spell with a corpse in vol3. Raise dead a tier 3 create zombies so how could Ainz not know any tier10 spells that create high level undead.Maybe even special sacrifice rituals. He can also create undead from books from the library as mercenary.