Xin Zhao gameplay update new trick/bug
Of course there are many combos that I have discovered and some things not quite touched upon in the official post but I'm sure most of them are pretty easy to figure out just from messing around in a practice mode game. However, this one where you w flash and the second part of your w casts both from your original location and your new location is pretty neat. I've tested it multiple times and as his w works with his passive like an auto attack (unlike crits, rageblade, etc.), it does not count as 2 passive "stacks" (say you were at 0 auto attacks, it does not count as 2 autos for your passive). I don't know if it's a bug or not but regardless I hope they keep it.
Edit: I have tested more and have found that the multiple cast locations don't stack on the same target. Basically flashing backwards forwards or in place will not make your w hit the same target twice or for double the damage.