Saber (Fate/Extella Link - Altera Larva)

Identity
Saber's True Name is Altera Larva (アルテラ), or Attira, but she is different from the Altera of Earth. She is the reborn form of Attilaight cell, no longer connected to the Velber.

Fate/Extella
Saber is born at the end of the game after the defeat of Sefar.