The Red Miles is an attack in Homestuck. It is performed through the Black Queen's Ring and has been used by Jack Noir and the Draconian Dignitary. It is an immensely powerful attack, capable of destroying buildings, planets, and even entire universes when combined with First Guardian powers.
Jack Noir
Jack Noir used the Miles first on the battlefield, destroying both Derse and Prospit armies and a good portion of Skaia. After the fourth prototyping, Bec's powers allow him to change the color of the miles between red and green. These more powerful Green Miles he uses to destroy the Trolls' session, starting with their twelve planets, and then their Prospit and Derse. During the events of [S] Cascade, the Red Miles kill the Genesis Frog in the trolls' Skaia. Jack's Miles are seen in the Post-Scratch Future Earth, destroying Dirk's and Roxy's houses and killing Roxy.
Draconian Dignitary
The Red Miles are used by the Draconian Dignitary after he gets the Black Queen's Ring. He uses the Miles to try to kill Dirk's dream self, instead knocking both his dream self and real self out, and killing Jane.
Trivia
• 'Knight', translated into Latin, is 'Miles', possibly hinting to when Dave ended up blabbing about it on Pesterchum, since he is a Knight and he types in red.
• Red Miles is said to have a counterpart called Blue Leagues, the infinite depth to Red Miles' infinite reach. Details are unknown at this time.