I just started with Sylvanas and for me as an agressive player she is just perfect. She will be probably nerfed in a few days but still her combination of abilities is great. It can be very offensive and at the same time running away from danger is very easy. So I came with this offensive build focusing on "Withering Fire" and "Haunting Wave". This way we can use 3 times all charges of Withering Fire after using Haunting Wave to reset WF's cooldown, but make sure to be fast on using the second HW.

Hope you guys like it and please make your suggestions. Let's improve it!