Mithrax, Kell of Light

Mithrax, the Forsaken is a unique House of Dusk Captain that appears in the Chances and Choices mission.

Gameplay
Throughout the mission Guardians will encounter Mithrax and his crew as they both try to gain control over the reactor. Mithrax can later seen dueling against a Hive Knight in which Guardians are given a choice in who to kill. Killing the Hive Knight and leaving Mithrax alive will activate an alternative ending in which he will speak in Fallen language presumably establishing an alliance with the Guardians. He disappears and grants the player access to the reactor.

Forsaken
While not physically appearing in Forsaken, sparing him is revealed to be the canon choice, as he defects from the House of Dusk and swears allegiance to the Last City, eventually joining a fireteam of Guardians. He argues that humanity, not the Fallen, are befitting of the Traveler.

Trivia

 * Due to his name, Mithrax might have a part in the Forsaken major expansion.
 * In addition to this, Mithrax is the second Fallen that doesn't fight the player, the first being Variks, the Loyal.
 * Maybe the name Mithrax is derived by the Romanian god Mithras, which is related to the similar Indian deity name Mitra and means "friend" or "friendship". "Mithrax" is also the name of a genus of spider crabs in the family Mithracidae.
 * According to the lore tab for the Lord of Wolves in Forsaken, Mithrax's name is properly transliterated from Eliksni as "Misraaks"; "Mithrax" is the result of human mispronunciation.

List of appearances

 * Destiny 2
 * Forsaken