Place it at the end of a losing play, after the final score appears, so the coronation closes the scene. Pair it with Enemy Spotted earlier in the edit to set up the rivalry, then let this clip deliver the payoff for the defeated player.
About this sound
This short Age of Empires II voice taunt delivers a mock-royal proclamation naming someone the king of the losers, spoken with pompous, theatrical flair in just over a second. It feels teasing, sarcastic and gleefully triumphant, turning a defeat into a joke coronation. The line comes from the game's English taunt set, where it was used to mock a losing opponent.