I don't know what is more saddening, the fact that you are posting all this bullsh!t despite your prio xp or that there were actually 14 mongoloid mop heroes + repping you.
Anyone with a 3 digit IQ should be able to see that the problem does not lie with polymorph. There are many problems with the Mage class right now and ill list some of them.
1: CD on dispel. Self explanatory, read my previous posts on this if you don't understand (aka Jaimex).
2: Tanky as fck. Passive sh!t like flameglow is the worst but other things like coldsnap healing you, iceblock glyph healing or immunity and so on have no place in the game. Removing flameglow and forcing ice barrier again also means Mages have their traditional counters back as it gets dispelled.
3: Frostjaw/ring of frost existing. I think the suggestion of putting polymorph on the same tree as these two is pretty solid.
4: Mana doesn't matter. This might not seem like a big thing at first but in the past running a mage oom by pressuring him in mana shield or by mana burning him or simply by stopping his evo/drinks would make him completely useless and often an easy kill. Nowadays mana is more of a rechargeable spell steal power bar.
But there is plenty more, things like mages having blazing speed. Wtf is up with that? I think its good its no longer a bullsh!t RNG talent but it clearly should be restricted to fire only. Returning Mages to dealing damage with proper shatter combo's and removing all these dumb nuke cd's will also help a lot.
Nerfing the fck out of every single healer will also help a lot in adressing Mages.
pretty much this, also this bullshit with mage has the best trinket ingame (blink) is so dumb, i guess just remove every iconic ability from every class, because the other ones don't have it and they think it's op.