Impact Shockwave does not work with Siphoning Strike

Impact shockwave support states it releases an aftershock after the ability heavy stuns an enemy. I noticed no increase in damage or any kind of visual when using this support, so i tested it out on my auto attack and that does in fact work showing a large aoe on the ground after heavy stunning an enemy.

Hopefully this can be fixed at your earliest convenience :)

Thanks for making such an awesome game!