Mordekaiser is a champion in League of Legends, Riot Games' multiplayer online battle arena game released in 2009. Known as the Iron Revenant, the armoured warlord was reworked in 2019 and became a popular juggernaut in the top lane. Short clips of his voice and combat sounds circulate widely on soundboards and in fan edits, where players use them to mark big plays and villain moments. The sound keeps returning because the character is instantly recognisable to a large gaming audience and his dark, heavy style suits memes, reactions and highlight reels.