Talk:Angel/@comment-26952857-20160816174155/@comment-28768171-20160816211433

Sealing crystals can be used. Since Ainz considered the possiblity of it being a seraphim in Nigen's crystal it means players would be able to summon them using a crystal as well. This also means you don't have to use a super tier spell to do it. It could be a 9th or 10th tier spell as well as a special ability similar to Ainz's ability to use exp to summon really high level undead.