I wish we would get a patch where everything gets more clarity.
Execute indicator for the following champions...
(forgot some, anyone with a missing hp ability or an ability that resets on kills in the case of kalista)
Easily identifiable tells for how many charges someone has on an ability without looking at their buff icon...
Spirit Rush,
Shadow Dance,
Void Assault,
Noxious Trap,
Rocket Barrage etc.
Normalizing ability effects between skins, the Twisted Fate treatment.
ultimate is rectangular on super galaxy but circular on normal skin,
harrier marks are more visible with Woad Scout,
nevermove has a huge light effect on tyrant but no special effect on normal,
death mark kill symbol is much more visible on PROJECT: Zed,
has a tornado effect on ultimate in Warring Kingdoms that is not in the other skins,
has better grab particles on iBlitzcrank.
has a pink and MUCH more visible vitals and ult effects on her PROJECT: Fiora skin.
Atlantean skin's dark spheres are much harder to see in the river.
Blood Moon red souls can be confusing when there are two Threshes in the same game
And a category that I can only get one sample for: Ability ranges that are incorrect.
Orb of Deception's range on the ability tooltip is a full sphere length shorter than the ability actually reaches.
Edit 1: Added Corki, Fiora, Syndra, Thresh, And Ahri Q.
P.S who is downvoting all my comments further down the comment chain. How r00d of you.