Talk:Servants/@comment-24391026-20180227033039/@comment-11147564-20180227075228

Servants are typically added during events or chapter releases, some added to the summoning pool immediately and some requiring you to beat the chapter they're related to for the story banner. Some are only available for a limited time, some servants are also available during rate-up but are otherwise only obtainable through the Story summoning banner where you can get them without having to clear the related chapter.