The Revenge of Monster Magnet!

The KB doesn't always work. If you have many ppl hitting under 15k and only hitting above 15k there is a high chance of it avoiding the KB because of all the attacks being done at same time thats not over 15k. Atleast thats how it used to work at pap long time ago when I went with random people.

The monster will only flinch from the "knockback value" under two conditions:

1. It's aggro is directed at the player who can do it
2. The player is dealing the damage greater than the knockback value

If even one of these conditions isn't fulfilled, don't expect the monster to flinch.