The Elders went down to Dustwallow Marsh to check into stories that the Black Dragon Onyxia had been revitalized by the last patch, and was laying waste to broad swathes of would-be adventurers. And, while it was certainly true that she was stronger than ever, they discovered that she still makes excellent bags. The Enlarged Onyxia Hide Bags, that is.
Thanks to Arthert for providing the kill screenshot.

Congratulations to everyone involved in this guild first New Ony kill:
Celi, Paprika, Arthert, Taggartfly, Reyknight, LouDFiero, Shemo, Vorissa, Maplelore, Tribian, and Blase

Of note: there was a second run immediately following this one that also successfully one-shot the old windbag.
Representing the Elders in this non-official run were Ainin, Frootloope, and Espada. Elder tanks and trees FTW!