I use the following glyphs..
Evocation
Ice Barrier
Mirror Image
I used to use the Mana Gem one..
Personally I have Alchemy and Herb..Herb for the HoT, and Alchemy b/c u can use the endless mana and health pots in arenas plus the Flask of North.
Now I remember what I was gonna say...Mana Gem glyph is wayyy more beneficial over the Evo glyph in several areas especially if you have a healer.
First Evo is primarily a 2s glyph w/o a healer, so if you are doing 2s I'd say go 4 it especially w/o a healer. Reasons not to get it.
1. 3s or 5s will have heals..or a good team will.
2. Evo is easily interrupted by silence, charge, Hammer of Justice...well you get the picture.
3. Mana Gem not interruptible and generally will restore more mana.
Now speaking primarily from a 2s perspective.
I don't use the Polymorph glyph b/c neither I nor Camm have any DoT's.
The Ice Barrier glyph is a life-saver...especially when a dumb warrior does Whirlwind or whatever it's called and then double-charges you. OP
I use mirror image b/c at times we've won matches simply b/c we caught the other team off-guard w/ so many ppl there..An Extra Gnimish = Extra confusion..
Don't use the Eternal Water glyph..the Freeze ability by your pet is tantamount at times especially if it means them getting just out of range of the Killing blow b4 there healer can get to em.
I don't claim to know it all about arenas or frost mages...but the Frost mage has been my passion since WoW..first came out.
At least you got the most important factor right Klangdon......Gnomes Rule All!!!
One other thing use the following macro..it stops everything you're doing to cast Silence
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/stopcasting
/cast Counterspell
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A silenced healer = pwned
Heres another awesome macro I use...
This sets your target as your Focus then sheeps them, leaving you free to pwn another target. When sheep breaks or runs out use the macro again to recast sheep on your focus w/o dropping the selection of your current target..
Ex...Target Bob the priest cast Polymorph Macro, switch to Bill the dumb warrior, throw everything u have on him...
Uh oh..sheep is breaking..recast Polymorph Macro and continue beating down Bill w/o switching your target to Bob.
You can also set up another macro like this for Counterspell, just change /cast [target=focus]Polymorph(Pig) to /cast [target=focus]Counterspell
However keep the first macro for CS as well in the event you have 2 casters...theres no point in cs'ing a sheeped target.
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/clearfocus [target=focus,dead][target=focus,noexists]
/focus [target=focus,noexists]
/cast [target=focus]Polymorph(Pig)
/stopmacro [nogroup]