If we are to believe Wu’s number there’s no reason for not using him.
It’s not just a matter of average damage, that’s an argument for titans.
What changes drastically is that whereas a sniper might kill an attacker, a Wued sniper has a lot more chances to kill an attacker if (s)he hits.
I think we all get the difference between dealing a good amount of damage and taking an enemy out.
With Wu you get that result 2 times out of three (rounded down).
Also… I never really got into detail with the calculation of the effect Wu has on special skills, but several observations have shown the damage dealt increases by circa 50%.
That moves a lot of heroes into the sniper category, even heroes who target multiple enemies or whose skill is not just damage (or mainly or significantly damage).
Just to give an example Tiburtus (295%) goes at roughly 442% which is not far from the likes of Sartana (452%) or Lianna (512%) only it targets 3 heroes - if AI is decent - and takes away defense too. On average you should hit 2 of those heroes.
But truth is it gets even better with indiscriminate targeting (AoE).
Because at 68% probability to hit, if you are targeting 5 enemies you are expected to hit more than 3 48.75% of the times.
That means that with your AoE half the time you will be dealing 50% extra damage to 4 or 5 targets.
It’s easy to fall in considerations on average, but we must keep in mind that hp are a restraint: once they go to 0, things change a lot so “impulsive” damage does matter.
[Worth noting, Wued AoE on 5 enemies hits
3 or more 4 times out of 5
2 or more 96% of times]
Be careful… As I’ve said I didn’t consider damage calculation in detail: my numbers are based exclusively on final output.
That means it could be improper to consider a +50% on final output a +50% on the initial damage percentage but you get the idea.