Talk:Swords of Darkness/@comment-118.69.65.181-20151207080241/@comment-203.215.118.23-20151207140055

Erasing 10 seconds of memories uses a LOT of mana even for Ainz who has an off-the-chart mana pool. Sword of Darkness consists of 4 people + Nfirea + Lizzie which makes it a total of 6 people. It's just inefficient to do this everyday and in case of emergency, Ainz would be defenseless because he already run out of mana. I dunno how fast mana regenerates but memory erasing is not a reliable method at all. I think, at max, Ainz can erase 20-40 seconds before he exhausts all his mana. The memory length of a single for that event is 30 minutes or even more. He also needs to repeat the same process over and over again. It's too tiresome and not worth yhe effort. It's like a job of planning and building a house and your salary is a measly $20 bucks.