Enthralled Val'kyr are Val'kyr that help the adventurer during Horde quest [lvl 36] "When Death is Not Enough" and Horde quest [lvl 40] "Ace in the Hole" in the Western Plaguelands.
This Enthralled Val'kyr has been brought into battlegrounds without any problmes.
The 10-19 Battlegrounds players are around 1-1.5k health whereas the Enthralled Val'kyr has 11k health and hits for 10k. Even higher levels battlegrounds will have problem with this Enthralled Val'kyr.
The bug report has been submitted and got more attention via the wow subreddit, so we will most likely get a big fix soon.
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