Hardest Champion to Play?
So Through understanding almost everyone's mechanics who would undoubtedly be the most difficult champion to play exceptionally well.
My Vote goes to 
29 Comments
Low mobility squishies in my books. If you ask me complexity is only half the factor that goes into what makes a champion hard to play.
Hardest to play:
Hardest to play well: 
i think all of these champs are hard to play and master.
Udyr because of all of his skill shots.
Azir, Draven, Vayne, maybe Nidalee are all exceptionally difficult.
In this meta i'd say . Extremely low mobility vs high mobility assassin/ adc meta.
I agree with , I'd also say that 
is also on the list imo.
Can be good with her all you want but some meat-head tank is going to do more than you ever can in this meta, and that's just after the hours your spent trying to properly learn all her cancels and matchups.
undoubtedly sol, or stuff like garen/nasus in diamond+
Gangplank
is arguably the hardest champion in the game (to play and to master).
for hard in general
for hardest to master
beats everyone out in difficulty due to all of the bugs. Remember its not a real league patch without azir bugfixes.
can I throw nami and ziggs in the mix.
Your positioning has to be incredibly on point.
Azir, Lee sin this 2 guys compete for the number one spot..I am strictly talking about mechanics;)
Super hard and complex champ.
