Xin Zhao Bug
I don't use a replay software so I can't produce a visual example of this right now, but have noticed that Xin Zhao's Three Talon Strike (Q) is registering and possibly dealing True Damage rather than Physical Damage.
If anyone uses a replay software, keep an eye out for this and put any screenshots of it here or in your own thread as this is potentially a huge problem.
Thanks Guys!