So we have Regular Saber, Saber Alter, Saber Lily, Playable Saber, Gawain Saber, Proto-Saber, and Red Saber and Ruler Saber. Black Saber is the only Saber in the entire franchise who has zero connection the first Saber other then his sword having the same legend connection as her.
So we have Regular Saber, Saber Alter, Saber Lily, Playable Saber, Gawain Saber, Proto-Saber, and Red Saber and Ruler Saber. Black Saber is the only Saber in the entire franchise who has zero connection the first Saber other then his sword having the same legend connection as her.
But Red Saber does have a connection to Saber. Playable Saber from F/E just looks like Saber but doesn't really have any connection to her other than looking like a twin.