As in, can Syndra toss things over Yasuo's wall, can Kha jump over Azir ult, etc, or is everything 2D? I'm pretty sure there isnt bc I dont want to make the mistake of trying to E over an Anivia wall as Gnar and than realizing I can't. Which may or may not have happened. Thanks
There is a Z axis but not all walls and barriers are the same height, so most is experimentation
"Height" is mostly cosmetic in the current MOBA games. Things off the ground do lose their movement collusion size, but skillshots still hit them as if they were on the ground.
Edit: As for your concern, you can always leap over Anivia walls since the wall's height does not block you from leaping/flashing over, regardless of how high your leap is.
In terms of visuals yes. In terms of gameplay mechanics, no.
