Beth'tilac retreats to the top of her web at the beginning of the encounter.
Beth'tilac slowly loses Fire Energy over time. Cinderweb Drones also siphon some of her energy when their own energy is depleted. Whenever Beth'tilac runs out of Fire Energy, she will set herself ablaze, causing Smoldering Devastation.
After she has performed Smoldering Devastation three times, Beth'tilac enters a frenzy. She lowers herself from the safety of the top of her Cinderweb and no longer calls for aid from her brood.
Lord Rhyolith ignores players while his armor is intact, but they can attack his feet to control his movement.
When Lord Rhyolith reaches 25% remaining health, his Obsidian armor shatters. He becomes attackable and no longer ignores players.
Alysrazor flies around the arena, allowing her minions to corner her foes far below. She periodically flies through the center of the arena to claw at foes.
Players with Wings of Flame contend with additional elements of the battle.
Alysrazor flies in a tight circle, removes Wings of Flame from all players after 5 seconds, and then begins her ultimate attack.
Alysrazor crashes to the ground with 0 Molten Power and becomes vulnerable. This stage lasts until Alyrazor's energy bar reaches 50 Molten Power.
Alysrazor's fire reignites at 50 Molten Power. This stage lasts until Alysrazor reaches 100 Molten Power.
Baleroc periodically empowers one of his blades with Shadow or Fire energy, and wields it alone for 15 sec.
Fandral transforms into a Cat when his enemies are not clustered together or into a Scorpion when 7 or more of his enemies are clustered together.On every third transform, Fandral briefly pauses in human form.
Ragnaros launches a Magma Trap at a random player's location. When the Magma Trap reaches the platform, it inflicts 58500 to 61500 Fire damage and knocks back players within 8 yards. The active Magma Trap persists for the duration of the encounter and triggers when stepped on, causing a Magma Trap Eruption.
At 70% health Ragnaros casts Splitting Blow, burying Sulfuras into the platform and creating Sons of Flame across the platform. Ragnaros submerges for 45 seconds or until the players destroy all the Sons of Flame, whichever comes first.
At 40% health Ragnaros casts Splitting Blow, burying Sulfuras into the platform and creating Sons of Flame across the platform. Ragnaros submerges for 45 seconds or until the players destroy all the Sons of Flame, whichever comes first.Ragnaros also creates two Lava Scions that attack the players.
The Firelord unleashes his full power and is able to move freely around the platform. Players have the aid of powerful heroes of Azeroth to support them.