by Aethelwulf » Wed Feb 10, 2016 6:14 am
The default is to raid as resto tbh. Ele shamans actually have extremely good DPS on their lightning bolts since they have the spelldmg coefficient of a 3 second spell on a 2 second cast for lightning bolt (CL is 2.5 sec coefficient on a 1.5 sec cast, even better DPS coefficient on top of the high base damage for when you have those clearcasting procs) on top of all the ways their talents add crit, hit, and lightning damage, which can total +11%, +3%, and +5% respectively. The only problem is that bosses have nature resist and Shaman gear doesn't exactly have nature penetration, so really no Shaman does DPS in raids. If you want to go out of your way to DPS as Ele spec, you will need the following spell penetration gear:
Rune of Perfection (WSG) - 20 pen
Shackles of the Unscarred (AQ20 drop) - 10 pen
Stormcaller's Footguards (AQ quest loot) - 10 pen
Robes of the Battleguard (AQ40 drop, boss 2) - 20 pen
Ring of Swarming Thought (AQ40 drop, boss 1) - 20 pen
This will total 80 Magic Penetration, which is enough to penetrate a boss's nature resist down to 0. From what I can tell, bosses have 70 Nature Resist by default, and if your Warriors have Thunderfury then their debuffs will also lower nature resist by 25. Some bosses might have higher nature resist though. Once you get that penetration, you can surprise everyone by being monster DPS with your lightning bolts and chain lightning, although you do have mana issues to worry about.
Anyhow, to get that gear, get used to raiding as resto.