Fix. God. Damned. AP.

Tank Ekko: cos AP is trash (and IBG and Sunfire OP) Viable pro-play mids: Lissandra, karma, Corki, varus, Azir, and until recently, lulu. 2 are AD, the rest are picked for their utility to empower (would you guess it) the ADC junglers and bot laners barring Azir (special mention for jungle Nidalee, whose role is: heal ADC so he hit much time). Pro-play supports: tanks. Poke supports are too squishy in a meta full of diving

Now I'm not saying the state of AP is the certain cause for all of these problems, but it relates to ALL OF THEM. Hell I even think Azir (who's damage is only viable due to his kit) is actually being picked primarily for his ultimate, with his damage being "oh that's also nice to have".

For any who watched the SKT vs KT series, note the Ekko builds. BOTH GAMES contained MULTIPLE AP DAMAGE SOURCES, yet both games the Ekkos built PRIMARILY ARMOUR.

Riot I don't know what the hell is up with the stigma you have against APs. I don't know if you are grievously overestimating their strengths. But whatever it is, it has to stop. (Most) APs pay dearly for their damage and CC, and a lot of the time these abilities are also skillshot based. You've dug too deep to climb out simply by buffing cooldowns on a few champions every patch or two. This is something that will require proper consideration. The worst thing is I think you're contempt simply nerfing a few MR items in places that aren't the main issue than actually HELP the ones struggling.