Lambda-11 (stylized as Λ -No.11-) is a character in the BlazBlue series. Her Drive, Sword Summoner EX Guard All Startup 15 Recovery Total: 48 Advantage , allows Lambda-11 to summon sword projectiles forward, which she can shoot at different angles, and can be chained together.

In the story, Lambda-11 is an imitation of the Murakumo Units, built by Relius Clover and later modified by Kokonoe . Although she dies at the hands of Yuuki Terumi while trying to save Ragna the Bloodedge , she was later resurrected inside the Embryo.

Due to Nu-13 's death in BlazBlue: Calamity Trigger , Nu-13 did not appear in the BlazBlue: Continuum Shift series and was replaced with Lambda-11. When Nu-13 returned in BlazBlue: Chrono Phantasma , Lambda-11 was removed and was replaced by her, but her moveset was merged with Nu-13's, becoming a stance character who could switch between the two's movesets. Starting with BlazBlue: Chrono Phantasma Extend , Lambda-11 returned back to the roster, with Nu-13 returning to her Calamity Trigger moveset. Here, Lambda-11 is considered her own character, gaining new moves that she can call her own.