Mage Supports are BROKEN
If you haven't been harassed & zoned out of lane from the moment you arrived you'll probably be 1 shot by level 2 cheese under turret, if not then by the time you are back in lane you have to be happy if you haven't lost ur tower yet.
It's a joke that you have to ban/pick ezreal in EVERY champion selection because you can bet on the fact that if you don't they will definitely pick it together with a nice xerath/sona/karma/lulu/viktor/zyra/vel'koz/ziggs/veigar support and kiss your turret goodbye in the first 5 minutes especially if your adc doesn't know the new "meta" and picks vayne/ashe walks into lane trying to farm (while I'm nice guy support still leashing/tanking red buff for jungler) just to end up either dead or with 50% health left and either no heal/flash or both.
No one even bothers playing janna support anymore because lulu shield is insane and sona heal is COMPLETELY broken mid & late game let alone the fact the amount of damage they deal while going only support items is just plain ridiculous
instead of exhausting/focusing the adc, you now exhaust the support atleast in this half-assed laning phase that probably finishes in 9 minutes (and turns into a fiesta) if you are lucky and which only happends in maybe 2 out of 5 games and the enemy jungler (probably the usual duskblade building jarvan IV) doesn't take advantage of this broken mess and dives you.
FYI all of this is all based from my experience in solo queue ranked & flex queue ranked playing together with the minimum rank being** platinum 5** and maximum diamond 5 (excluding random diamond 2 & 3 & 4 players and 1 master)
And we are talking about preseason and the greater majority being platinum here, you have to depend on luck because you are either on a team that wins lane but has 0% teamwork, ridiculous decision making and only know how to 2 v 3/4 v 5 and die. And the only reason you haven't lost yet is they are mechanically skilled. (atleast no flame and toxicity god knows why) then you have the teams where you have teamwork, synergy and understanding and a good jungler and you win games within the first 20 minutes and even less.