[Detective100]

Sound burst doesn't knockback, if that is what you meant by a knock back slow.
If by AoE confusion you mean Cacophone, just checked to be certain.  Seems that it does inflict confusion, though curiosly enough it happens seldomly. Only once every couple of ticks for around a second I believe? Most of the time the person was able to walk towards me without much issue, only making a couple steps to the other side once every couple of minutes.

That said:
"A knock back with insane damage" That's shockwave. Wind, not sound.
"Something op as *** like Tornado". Wind.

I did say that wind has the better anti-melee abilities, if you look at wind and sound seperately.

Edit: Was told cacophone's confusion is %chance based per tick, which fits the results I had while testing it. Not sure what the %chance is though.