In this first Patch 10.1 PTR build, all the Season 2 Mythic+ dungeons received tuning which includes nerfs to Brackenhide Hollow and Halls of Infusion.
As a reminder the Season 2 Mythic+ dungeons are:
Halls of Infusion
Brackenhide Hollow
Uldaman: Legacy of Tyr
Neltharus
Neltharion’s Lair
Freehold
Underrot
Vortex Pinnacle
72989 Nature damage inflicted over 9 sec.
Effect #1 Effect #1 Apply Aura: Periodic Damage: Modifies Damage/Healing Done
Value: 11.03784 (SP mod: