Talk:Tier Magic/@comment-110.54.236.154-20180811182045/@comment-36605886-20180816121148

[Extend Magic] is just the D&D metamagic Extend Spell. It doubles the duration at the cost of raising the tier of the magic by 1. It's unlikely that Ainz uses it for summons though, due to his reliance on Super Tier magic which can't be used with metamagic.