I use destro(flame)/destro(lightning) and like most sorcs, the "crushing shock" build.
Destro and resto staff currently scale off of weapon damage and spell crit. This is subject to change in update 1.6 but is the case atm. Therefore your goal should be to max these attributes.
Bar 1(AOE) looks something like this:
1 - Magelight-Inner light
Toggle on/off. Always have it on. It raises your spell crit by 20% when maxed out. A must have for sorcs.
2 - Surge-Critical Surge
20 second or so buff to weapon damage. This is another must have for staff users as it will quickly softcap your weapon damage. It cost very little magicka as compared to the benefit and time it lasts.
3 - Weakness to elements-Elemental drain
This provides an decrease in the enemies spell resistance to elemental damage, which is what you will be using as your primary source of damage.
4 - Impulse - Elemental Ring
The AOE effect of this skill is obvious. What is not obvious is that when morphed to "ring" the extra DOTs proc the "heals on crit" much more often from the critical surge morph of Surge (only with flame staff). A combination that will help you to be more tanky in the heavy hitting fights.
5 - Force Shock - Crushing Shock
This is the fastest DPS skill available to the sorc due to the elemental damage and how the procs and buffs other skills. More importantly, the "crushing shock" morph disrupts casting enemies. This is an extremely important utility that is needed for most endgame content.
Ult - Dawnbreaker - Flawless Dawnbreaker
Except for Negate - Suppression Field, the sorcs ultimates utterly suck. Flawless Dawbreaker is a no brainer as it passively increases your damage just by being slotted. Don't use it just keep it on the bar.
Rotation 1
Toggle on inner light. keep on.
AOE - Activate Crit surge. Spam Elemental Ring. Repeat
Single target - Activate Crit Surge, elemental drain, crushing shock, light attack, crushing shock, light attack. rinse and repeat every time crit surge goes down.
Bar 2 (Execute - Single Target)
1 - Magelight - Inner light
See above
2 - Equilibrium - Spell Symmetry
This will trade health for magicka. Obviously use it when low on magicka. Only use 3 times in a row, any more than that will likely get you killed. Only have on one bar and swap to use it when needed.
3 - Mages Fury - Mages wrath
This is your execute skill. Increase damage/explosion damage when target <20% health. Basically stay on bar 1 until the enemy is at 20%, then switch to bar 2 and spam the hell out of this spell. Watch health melt away.
4 - Lightning form - thundering presence
I can't tell you how many times this skill has saved my ass. In a raid of 12 people when everyone dies this skill will keep you alive. I keep it on bar two and usually only need during execute phase when bosses enrage.
5 - Force Shock -Crushing Shock
See above. basically always use this skill for sustained damage so keep on both bars. Always weave it with light attacks (i.e. CS, LA, CS,LA,CS, LA, etc)
Ult - Negate - Suppression Field
This is the only reason people want you in raids. It allows you to negate all casters in the area and provides your allies with spell resistance you would normally only get for yourself. Swap for atronach or meteor if not needed at the time.
Rotation 2 -
As stated before when your out of magicka after using bar 1, swap to bar 2 and use spell symmetry 2-3 times then swap back.
When executing, make sure to activate crit surge on bar 1 before swapping to bar 2 for execute. Then mages wrath, light attack, mages wrath, light attack, rinse repeat when crit surge goes down.
Try and mix in thundering presence every 7 secs if you need to. Crushing shock is used on this bar if the boss spawns adds during the execute phase that requires you to disrupt casters, using only for adds. If any target is below 20% health you should be using mages wrath.
Finally some other skills to think of:
swap impulse-elemental ring for expert-evil hunter on daedric or undead boss fights that don't require AOE.
swap elemental drain for expert-evil hunter on daedric or undead fights that require AOE.
Just a note: This build uses 2 destro staffs. I equip the resto staff just for ultimate generation between fights and have an entirely different heals build. Wykkyd's outfitter will help you swap skills and weapons quickly inbetween fights, use it.
Happy Hunting! and here's a link to this build.
esohead.com/calculator/skills#mMkXeek9cW0mia8A4hI8AIUM8hMj48hMZD8hmKX8LxRn8A4hI8A4fp8AIQH8AIPq8hmKX8NioF8L7JcdoQr6MdoQC6MdoQF6MdoQJ6MdoQK8e7XLaqq6raqT6raqS6Mi4bD6Mi4bU6Mi4bX6Mi4b16Mi4b48v7XMhy3D6Mhx0n6Mhx0y6Mhx0l6Mhx0B8H7Drzwm6MNieh6MNieA6MNieT6MNiey8J7DMNUIz6MNUIc6MNUIi6MNUIN8K7Drkg6Lzuj6rzun6MANRQ6MANRU6MANRW6MANRZ8O7srdeC6rdeF6zAZqS6MA3FN6MA3FA6MA3FL6MA4Cb8P7ardYw6zLp4d6cLncp6cLncn6zLyjz847pzxLCe6cxLDm6cxLDo6cxLDs8zf7zzNbo8zu7zzHfYE6zHfZd8zG7zzHQ3F8zI7zzJIoX6zJIkL8zN7zzJZcY8zA7zzKpUN8zL7zzK4EX
Because your not max yet I would put all attribute points into health. In endgame content 2600 HP is enough to not be one-shot, so most people will eat some food to buff up and put enough points into HP until they reach 2600 then put the remainder in their choosen resource (for sorc, usually magicka).
Armor:
If you like pets you should look into the "necropotence" set. But the regular go to sets for most sorc builds are:
1. Seducer
2. Warlock
3. Willow's Path
4. Twilights embrace
5. Torugs Pact
6. Soulshine (just jewelry)
You can get lvl20 warlock gear as 3 jewelry and 2 body for 5 piece bonus. This will actually carry you to ~lvl50 if you need it too. The remainder can be crafted seducer set. This gives you ridiculous magicka regen so you can spam all day long.
Traits:
Usually you'll want infused on head, robe and legs. Divines on the rest. This is due to the percentage bonus provided by "major" and "minor" pieces of your armor.
Enchants:
Magicka on all armor. Reduce spell cost on jewelry.
Boon:
The thief- for the spell/weapon crit
Weapon:
as stated destro/destro. use precise trait for increased crit . Use Shock damage enchants to synergize with "disintegration" passive. Don't forget that your weapon can be part of a set too.