Talk:Rubedo/@comment-130.105.69.92-20180326203602/@comment-34985584-20180608064941

Or since Ainz was expecting that it was a trap laid by the ones who brainwashed Shalltear, Ainz did not want to show them the trump card of Nazarick. Besides, Ainz did not even want the NPCs of Nazarick to fight Shalltear, so that's pretty much the reason he took up the role of fighting Shalltear.