@Meddler: What is your stance on AP fighters?
Diana and Elise are both in bad spots because they do considerable damage while building tanky, thus requiring them to be intentionally underpowered. Meanwhile, Rumble is totally fine because his damage, while strong, is all DoT's, meaning he can't burst you (he also has no hard CC).
I'd like to know what the plan is for AP fighters in general. What niche are they to fill? Will you be making more? Is the classification an area of bad design?
Oh, and if you're interested...
Obligatory concept link, go!
http://boards.na.leagueoflegends.com/en/c/skin-champion-concepts/aGuGtOEQ-celes-the-hand-of-justice
) and she's forced to be tanky. Also she has poor utility compared to other mages(
).
, 
) and she's forced to be tanky. Also she has poor utility/escape tools compared to other assasins (
).