Its no mystery  that everyone here is for the most part a complete dumbass.   Most of them are simply regurgitating what they were taught by the people I taught, but sadly since they were never exposed to the actual source they end up coming here and looking like an idiot because they never actually understand what they are being taught.. they are like birds simply imitating the few concepts here and there   

Look back through the forums over the years and you will find time and time again people spouting off rubbish that they know nothing about.  Years later you will see the same people finally coming to the conclusions that I calmly tried to explain to them a decade earlier.   Of course they never "arrive at the conclusion" for themselves until time and ignorance has washed against their skulls enough times to erase the damage I might have caused by trying to teach them concepts they were obviously not ready to accept.

Now, onto the topic at hand... Acid Sorc... or for those who those who are a little more refined, a Conjuration sorceror.

The main reason people are mostlyl blind to the benefits of a conjuration specialist are due to their melees having such puny DPS that they simply cannot see themselves having the teeth to chew their own food... they need Mass Hold.   

Web is an amazing spell that works wonders on many mobs.   Glitterdust is another amazing spell that most people no nothing about.. and works on the remainder of the mobs that are immune to web.  Hell Stinking CLoud is another great one but we won't go there.

As for the OP simply lose Ice Storm, that is wasting your mana.   All you need to do is web the mobs and cast Acid Rain as usual. After casting Acid Rain what you will do is simply cast two fully maximized/empowered Acid Blasts on the mobs every few seconds.. one being your SLA, the other being from your lvl 3 spells.  Should cost 30 sp for both of them with all the  Meta discounts.   That will solve all your problems.   If you still have problems, just lower the difficulty as needed until you accumulate the gear/experience/ DCs/ Spell power etc as usual.  But for now, this alone should get you through Elite mobs easily.  

Where can I get some decent low-epic gear

What is the gear layout at cap as an Air Savant that everyone is using?

I'm not so sure about this. I feel like I've managed to keep a great deal of the forumites silenced in the druid threads. The only one evading logic is fucking Tilomere. Who I assume finally stopped taking his meds because boy has he gone on a tirade of stupid the past few weeks in the lamannia/preview threads.