New HoF LFR and Garalon...

[KaPe]

It should also apply 90% snare to make sure you stay there and get killed under his enormous butt. That would teach people rather quickly.

[Keosen]

Or getting a 24hour undispellable debuff that awards you a temporary title, like the Maloriak one, reading "...the Tard"

[celinamuna]

Personally i found the amber-shaper to be even worse than Garalon.
While explaining to constantly changing pugs how to sheep and keep adds cced is hard, but explaining to pugs to switch targets on amber and how to operate "transformation" is way over average LFR player.