Colosseum Knight was the optional final opponent of the retired Starlight Colosseum event. Its name appeared as Colosseum Knight in-game.
Encounter
After all five waves, surviving challengers could vote to continue the event rather than finish normally. If Continue...? received more votes than Challenge Complete, the Colosseum Knight appeared. The fight became more dangerous the longer the boss remained alive.
Qualifying for rewards
Each challenger had to land at least three successful hits on the Knight to qualify for a Hollow Heart after victory. Defeating the Knight awarded a total $25,000 pool shared among survivors. A single surviving champion also received a guaranteed Skeleton King Crown.
The Hollow Heart let each eligible player choose one of four Halloween-exclusive cosmetic skins at no cost. It did not award a random piece of equipment.
Historical status
The event ended in early November 2026. The Knight challenge is no longer playable; its rewards are part of the Colosseum’s history.