In addition to the brand new affixes in Dragonflight Season 2, the Explosive affix is getting some changes in Dragonflight Season 2 Mythic+.
Blue PostIn the original Blue Post, Blizzard announced the following:
Updated Affix: Explosive – Fewer Explosive Orbs spawn, but they now have substantially higher health. DataminingFrom datamining, this isn't the only change that was made to Explosive:
Deals Fire damage equal to 40% targets' health to enemies within a 60 yard radius. Cast time increased to 8 seconds (was 6 seconds). Speculation and Thoughts History of ExplosiveThe Explosive affix launched in Patch 7.2, alongside the other affixes Grievous, Bursting and Quaking. Ever since its additional, players have had some complaints over the affix including the ability to target their nameplate, how often they spawn and their original health pool (which scaled with the Fortified modifier. Some of this was addressed in future patches:
In Battle for Azeroth on November 15th, 2018, Explosive Orbs health was nerfed by 50%, and will no longer spawn from CC'ed enemies. During the Shadowlands Pre-Patch, Explosive Orbs health was reduced to trivial amounts.While this has helped make the Explosive easier, the number of explosive orbs spawning still can causes issues every expansion on particular bosses and just generally with large trash pulls. This can lead to targeting issues, though players have found success through Weakauras such as this Explosive Orb hide namelate one that you can add a keybind to hide all nameplates except for the Explosive Orbs.
How Much Will This Help — SpeculationThe Blue Post unfortunately isn't very descriptive and leaves a couple questions that still need to be answered:
How much slower Read more on wowhead.com