"Legendary 3" is not officially made by Blizzard, but by some WoW players with professional skills. They gathered more than a thousand extras, equipped with professional dubbing and exquisite post-production, spending three hours per day and spent one and a half years to complete it finally.
When the prophet told everyone that the only way to stop Arthas was to find the Ashbringer, the Scourge invaded Azeroth under the leadership of the Lich King Arthas! The Alliance and the Horde united again to fight against the Scourge. Our hero Blazer then went to Northrend to look for the Ashbringer. After undergoing the trial of the Ashbringer, Blazer came to Naxxramas and had an exciting battle with Arthas. Eventually, Blazer sacrificed himself, purifying Arthas and stopping the plot of the Lich King and the Burning Legion. However, the Naaru came to Arthas and let him wear the helmet of the Lich King again, and a greater conspiracy is brewing.