[Man0warr]

This spell seems to be bugged like Zlandicar's Stun Breath (supposed to be a proc on the tank only, and not an AE).

Von basically chain procs this on the whole raid, it does around ~1200 damage so your entire raid gets shotgunned down instantly. It's a level 57 dragon in WW that shouldn't be hard to kill. Lucy/Allah says it's a targeted AE but Zlandicar's Stun Breath for sure only damaged the tank - and Von seems unkillable without a huge zerg if it's chaining 1200 damage AEs on everyone so it doesn't make sense for it to be an AE and not a single target proc on tank.

[Mon Aug 03 15:27:51 2015] You experience chaotic weightlessness. You have taken 1228 points of damage.
[Mon Aug 03 15:27:52 2015] You try to punch Von, but miss!
[Mon Aug 03 15:27:52 2015] You punch Von for 16 points of damage.
[Mon Aug 03 15:27:52 2015] You crush Von for 34 points of damage.
[Mon Aug 03 15:27:53 2015] You punch Von for 33 points of damage.
[Mon Aug 03 15:27:53 2015] You try to punch Von, but miss!
[Mon Aug 03 15:27:53 2015] Auto attack is off.
[Mon Aug 03 15:27:53 2015] Juevento's hand is covered with a dull aura.
[Mon Aug 03 15:27:54 2015] Hevie tells the guild, 'EVASIVE IS ON'
[Mon Aug 03 15:27:54 2015] Sinko begins to cast a spell.
[Mon Aug 03 15:27:54 2015] Sweettouch says, 'Divine Light to Taira'
[Mon Aug 03 15:27:55 2015] Slowscales regains concentration and continues casting.
[Mon Aug 03 15:27:55 2015] Slowscales tells the guild, 'MALO'd ~ Von ~ MALO'd'
[Mon Aug 03 15:27:55 2015] Eillac says, 'Celestial Exilir -- Kaleesi the High Elf'
[Mon Aug 03 15:27:55 2015] You mend your wounds and heal some damage.
[Mon Aug 03 15:27:56 2015] Auto attack is on.
[Mon Aug 03 15:27:56 2015] You try to punch Von, but miss!
[Mon Aug 03 15:27:56 2015] You try to crush Von, but miss!
[Mon Aug 03 15:27:56 2015] Juevento rises chaotically into the air.
[Mon Aug 03 15:27:56 2015] Juevento has been slain by Von!
[Mon Aug 03 15:27:56 2015] Eadras rises chaotically into the air.
[Mon Aug 03 15:27:56 2015] Eadras has been slain by Von!
[Mon Aug 03 15:27:56 2015] You experience chaotic weightlessness. You have taken 1228 points of damage.
[Mon Aug 03 15:27:57 2015] Sinko's casting is interrupted!
[Mon Aug 03 15:27:57 2015] Divor begins to cast a spell.
[Mon Aug 03 15:27:58 2015] Uprite rises chaotically into the air.
[Mon Aug 03 15:27:58 2015] Uprite has been slain by Von!
[Mon Aug 03 15:27:58 2015] You experience chaotic weightlessness. You have taken 1228 points of damage.
[Mon Aug 03 15:27:58 2015] You have been knocked unconscious!
[Mon Aug 03 15:27:58 2015] You have been slain by Von!
[Mon Aug 03 15:27:58 2015] You have lost experience.
[Mon Aug 03 15:27:58 2015] Vetus rises chaotically into the air.
[Mon Aug 03 15:27:58 2015] Vetus has been slain by Von!
[Mon Aug 03 15:27:58 2015] Hevie tells the guild, 'dont have agro'
[Mon Aug 03 15:27:59 2015] Kinvalar rises chaotically into the air.
[Mon Aug 03 15:27:59 2015] Kinvalar has been slain by Von!
[Mon Aug 03 15:27:59 2015] Whackin rises chaotically into the air.
[Mon Aug 03 15:27:59 2015] Whackin has been slain by Von!
[Mon Aug 03 15:28:00 2015] Hevie rises chaotically into the air.
[Mon Aug 03 15:28:00 2015] Hevie has been slain by Von!
[Mon Aug 03 15:28:00 2015] Nlaar rises chaotically into the air.
[Mon Aug 03 15:28:00 2015] Nlaar has been slain by Von!
[Mon Aug 03 15:28:00 2015] Nyclin rises chaotically into the air.
[Mon Aug 03 15:28:00 2015] Nyclin has been slain by Von!
[Mon Aug 03 15:28:02 2015] Returning to City of Thurgadin, please wait...
[Mon Aug 03 15:28:02 2015] LOADING, PLEASE WAIT...

~3600 damage in 7 seconds.

There are a couple of other dragons in WW with the same ability (none of them are being killed, guilds just leaving them up).