A chained wyrm in a lava caldera. Dodge the glowing plates, then hit it while it is cooled.
Enter with ::~cindermaw
The ash-priests of the Cinderwatch chained a wyrm under Mount Hesk with nine iron chains and a lullaby sung every dusk. The last priest has died, the song is forgotten, and the chains are snapping. Someone has to put the wyrm down before the mountain wakes with it.
Pray
"Spit!" (orange fireball): Protect from Missiles.
"Gout!" (dark cloud): Protect from Magic.
The hit lands 3 ticks after the shout.
Move
"Tail!": an ember ring covers every tile within 3 of the middle dais. Stand 4 or more tiles out.
Flood: the shout names a plate of the floor and its tiles glow. Leave that plate. The lava keeps burning anyone left on a flooded plate.
"The mountain breathes in!" (Quench): a cool glyph appears on the last dry plate. Stand on it or take 85.
Hit it
Molten, it takes only 20% damage. After a Quench it is cooled for 14 ticks: hit it hard (250%).
Phases
Cinderstorm at 600 hitpoints: shorter waits, and the first flood takes two plates.
It also rages faster at 900, 600 and 300 hitpoints (it shouts when it does): shorter pauses, quicker floods, hotter lava.