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The Knight Trio is a trio of Promethean Knights.
The Knight Trio consists of three Knight Commanders; Animus, Malice and Sever, with an additional Commander named Rive joining in occasionally; when Rive is present, the knights are collectively known as the Four Commanders. The trio (or quartet) always spawn together and use LightRifles as their primary armament, though they will switch to an Incineration Cannon when necessary.
- Halo 5: Guardians (First appearance)
- All four Knights have names which are related to hostility or separation.