Vengeance Demon Hunter Fiery Brand Hotfix - No More Packing Lunchboxes

wowhead.com:

The recent Fiery Brand hotfix has significant implications for the skill ceiling and strength of Vengeance DH and we're going over the change!

As of May 8, a hotfix has been deployed to both PTR and Live realms that has completely changed the behavior of Fiery Brand as well as its related talents for Vengeance Demon Hunters. This has significant implications for the skill ceiling and strength of the spec which we'll go over in this article.

For the uninitiated, Lunchboxing was a term invented by the primary discoverer of this tech, Meyra, because the behavior for spreading Fiery Brand with the Burning Alive talent behaved similarly to packing a lunchbox, then reheating it and pulling it out later. For an in-depth explanation of all the issues and bugs that were solved, refer to my article on Why You Should and Shouldn't Play Vengeance. For those of you that just want the meat of it — a simple explanation of how this tech worked — what effectively happened was that Fiery Brand was limited to spreading only to 1 target a time, no matter how many were cast. This had previously caused issues, as prior to the 10.1 patch, with the Down in Flames talent, if you cast 2 separate Fiery Brand, the spread from Burning Alive would break entirely until one of the origin brands expired. Because our new 4 piece tier set bonus, Demon Hunter Vengeance 10.1 Class Set 4pc automatically cast a short duration Fiery Brand when procced, and they wanted it to interact with all the talents that affected it, they needed to fix this behavior, or the set bonus would be a net negative for the spec. Therefore, they fixed it by storing the state of the current brand(packing the lunch), letting the initial cast