Types of Availability
- Non-Limited - Available in the general summoning pool.
- Limited - Can only be summoned during certain events.
- Story-locked - Only available in the Story Summon after completing their associated Story section, or in limited banners in which they are explicitly listed as a Rate-Up Servant.
- Welfare - A free Servant acquired from completing an Event.
- Friend Summon Only - Only obtainable available from Friend Point Summoning.
- Starting Servant - Available at the start of the game. Cannot be burned or used for EXP.
- Unavailable - Currently not playable.