Kick
Kick Disintegrate once Fire Breath is out — that is the damage. Stop a charging Fire Breath. Tip the Scales can make it instant, so look before you hold the kick.
Watch for
Dragonrage plus Fire Breath and Eternity Surge is the kill. Deep Breath through the clump is the second go. They Hover out of stun, then Deep Breath the landing.
Defensives
Stop the dump into Obsidian Scales. Time Stop is a full freeze — sit it. Nullifying Shroud eats your first crowd control; throw a cheap spell first. Do not chase Hover.
CC
Landslide roots you in place for the breath window. Deep Breath knocks along the flight path — step out. Sleep Walk disorients; do not trinket it if Deep Breath is still available.
Kill window
Go after Dragonrage ends and Obsidian Scales is down. Time Stop and Hover should already be spent. After Deep Breath they often land with no wall.
Biggest mistake
Standing in Deep Breath, or dumping your offensive cooldowns into Obsidian Scales or Time Stop.
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