Solenar the slayer - Rhok'delar - Stave of the ancients quest

[Velara-gilneas (Velara)]

Well apparently there has been a “fix” and you can no longer split off the adds.

Bugfix for Solenor the Slayer and Other Enemies

The bugfix to leash behavior of groups of enemies makes the game behave like it did in original WoW. We discovered the problem because of Solenor the Slayer, but it was a bug with all linked combat groups’ leashing behavior. The fix only affects linked combat groups with a leash timer, so there are still plenty of situations when you might attract the attention of multiple enemies and be able to split one off.