Unpopular opinion: Aphelios isnt as hard to play and master as riot thinks.
He is certainly unique and not newbie/idiot friendly, but he isnt the hardest champ mechanically. Lee and kat are still above him mechanically by a pretty far margin.
Hear me out before the inevitable fangirl downvotes. He basically has only 3 buttons to work with. Q, W, and R. One of which does nothing except switch weapons and act as a passive, so really Q and R is the only two abilities to focus on mechanically. The champ has alot of different effects for different situations but its just a Simon says game when you really look at him. A memory game. If you study what each of his weapons do then from there its just a matter of pressing Q and R. Its not mechanically hard to do at all once you know what his weapons do.
There is a champion similar to this playstyle already. He is called
. Im not saying he is as easy as udyr, but the concept is the same. Each of his abilities are good depending on the situation, but instead of choosing what abilities he can do its RNG. The RNG aspect of his kit is what makes him more complicated than most champs because he cant just CC or wave clear when he wants. But this is artificial IMO. The RNG of his weapons force a difficulty rating on him in order to overload the living shit out of his kit.
Also ammo management is nothing new since graves rework. His high ammo count is another artificial skill gate to prevent you from swapping weapons too frequently to get the weapon you want.