Following Gino's defeat by Suzaku, the Tristan is rebuilt by the Black Knights into the Tristan Divider (トリスタン・ディバイダー?). It features a Black Knights' model Float System and a redesigned head unit similar to the Galahad with longer red horns. The MVS Polearm is replaced with the two severed halves of the Galahad's Excalibur, refashioned into twin swords. It manages to destroy the Shinkirō, but the Knightmare Frame is once again badly damaged by Suzaku, who severs it in half at the waist.
In the manga spin-off series, Nightmare of Nunnally, the Tristan was built by the same manufacturer as the Irregular's Alpha units, but unlike the anime series the pilot of this unit is Anya Alstream instead of Gino. Like the Lancelot, the Tristan appears slightly human in shape and is installed with a synthetic and electrical gel with a special wax made from sakuradite and a muscle framing system and its base metal uses sakuradite with Geass-conducting circuitry, however it does not have a Knight Giga Fortress mode. Its main weapons are the MVS Harken Automated Trajectory Variable type, and it function similar to the Mark Nemo's Blonde Knives
