[Kameron8]

To be as concise as possible, the knockdown should indeed be removed or made less accessible. It's an extraordinarily powerful crowd control with no caveats, +15 more damage than a full basic attack (much more than the autohits that also knockdown), no cooldown, and huge range. On top of that, it can be used to drag people through cinders or equally harmful tiles for even more damage.

It's disproportionately powerful, and desperately needs to be tuned down.