https://wccftech.com/blizzard-nerfs-druids-shamans-monks-pvp/

Blizzard has rolled out a new World of Warcraft: Battle for Azeroth patch which nerfs Balance Druids, Elemental Shamans and Mistweaver Monks in PvP.

The hotfix was already announced earlier and it now been rolled out the game’s live servers. The nerfs to the above mentioned specs only apply in player vs player settings.