Arthas Menethil is a fictional character who appears in the Warcraft series of video games by Blizzard Entertainment. He was once a paladin of the Silver Hand and the crown prince of Lordaeron, but he was corrupted by the cursed blade Frostmourne in a bid to save his people. He later became the Lich King, one of the most prominent antagonists in Warcraft lore. Arthas also appears as a playable character in the crossover multiplayer online battle arena game Heroes of the Storm. The critical reception of the character has been mostly positive.