Fillia

Fillia (バズディロット・コーデリオン) is the an Einzbern homunculus involved in the False Holy Grail War of Fate/strange fake. As of the summoning of True Berserker, her body has been possessed by an existence on a higher level than a Heroic Spirit.

Personality
The being who has possessed her claims that it will rule over humanity now that it has descended.

Fate/strange fake
Fillia granted Ayaka Sajyou five Command Spells for an unknown purpose. Due to something during the summoning of True Berserker, her body is taken over by a higher existence.