in Pvp, things were chancy. If i got lucky, i got lucky. If my Pom pyro fireblast did well (5k crits with pyro) then things would die fast.... maybe. But really, it was a luck of the draw type of thing. Unless i started the AOE.... AE with flamestrike= mass killing. Only in AV of course. in PVP, each missile did about 450-550 dmg and crits were for about 900-1000. Pyro critted for about 5k when AM'ed, and Fireblast would crit for about 2-3k every now and then. regular dmg with fireblast was about 800-1000 depending on the guys resilience. Most of the time, i didnt crit, and pyro only does about 1500 dmg give or take. In Pvp, i had to pray, and i never stood a chance against rogues, most locs, and most hunters(unless i got that lucky crit). If i got ganged on, which was like 90% of the time, i was totally screwed. but when i polyed someone, and they didnt proc their insignia, then it would stay forever :P. Enough for me and another mage to pyroblast.
okay 5 mans varied, but ill go with the Slabs pull. First thing would be to sheep,then target the main burn and start up a pyro (I would save my AM PoM for later unless i thought the tank was really good). it would go pyro, fireblast, Arcane Missile, fireblast, untill it died then resheep and move on to the next one. If the Tank can hold aggro really well, i would Frost Nova, FlameStrike, Arcane Explosion and have fun with that. Clearcast would proc alot. If clearcast proc'ed when i was doing the single target thing, then i would cast an Arcane Missile automatically. Mana wasnt too big of an issue, but if i was with a group where i was the only dps, i would be OOMing about every 2 to 3 pulls. with a good group i could last on 50% for about 3-4 pulls. I had about 1150 mana without a kings buff (just me and my AI). If I found myself running out of mana too much, and i didnt really need the dmg of my AM, i would slow spam scorch till fireblast... and wait for a clearcast. Also, i would slow if the going started to get a bit rough.
Arcane Missile in a PvE situation would do 550-600 dmg per missle and then about 1100 crit per missile crit. crits happened alot, without kings and moonkin, my crit was about 21 percent.
With a boss, the idea is to wait for sunders (usually 3) then go Slow, Arcane Mind, Trinket thing, then pyro, PoM pyro, fireblast, Arcane Missile. then just rotate the Arcane Missile and fireblast unless a clearcast procs, then go immieadtly to Arcane Missile. If i run out of mana, then Evo or mana pot, no big deal. I had enough mana and clearcast proced enough times where if i had to worry about having no mana after an Evo, then i could kiss my *** goodbye. or just Invisibility... that worked to get out of it too :P. Corse now i can just Ice Block with the new patch.
If i needed to do something special, like AoE with a boss, (that one fairly annoying boss in Bot... the second one i think. The one with the healing plants) then a frost nova, flamestrike, and while that was going nuke the boss, then go in there and AE things or just ice lance the remaining weak ones.
In PvE, i could tank some of the casters in a 70 instance and win. W00t. almost no health though... a bit over 6k.
Mana, all in all, wasnt a huge issue, but it was annoying to tell the truth. I was using alot of food thats for sure. No i dont use a threat meter, whats a good one?
Btw, disreguard my current build, i saw it just 6 hours ago, put the specs in, tried it... and holy crap its kinda weird. It seems fun and i could get used to it(which looks like will take a bit), but really im up for anything. Im a fast learner, and i think all aspects of mages are fun, not just Arcane, or fire, or frost.