Blizzard has provided an update to the upcoming class tuning, noting that they will be nerfing Destruction Warlocks more than previously announced.
After further investigation, we’re revisiting our adjustment to Destruction Warlock and lowering Inferno’s target threshold to 5.We’re finding that this synergy is still overperforming at 8 targets due to the resource generation and by adjusting this we avoid having to make changes that could affect Destruction’s lower target count output.WarlockDestruction Inferno (Talent) now has a reduced chance for Rain of Fire to generate Soul Shard Fragments when it deals damage beyond 5 targets (was 8). .
Read more on wowhead.com