The Ragnaros encounter is a boss fight in the popular MMORPG World of Warcraft. Players face Ragnaros, the Firelord, in the Molten Core raid, where he commands fire and lava. The fight requires teamwork, as players must manage adds, avoid environmental hazards, and deal damage to Ragnaros while he uses powerful fire-based attacks. During the encounter, Ragnaros periodically summons Sons of the Flame, which players must defeat to prevent overwhelming damage. The fight is divided into phases, with Ragnaros becoming more aggressive as his health decreases. Successfully defeating him rewards players with valuable loot and achievements.