I have received a lot of PMs asking for the specifics on a 30/21/10 build, such as what kind of gear is required, cast rotation, advantages, etc.
What I would like to do is post the 2 builds that I alternate between the most (and an optional 3rd), and attempt to explain the benefits/disadvantages of each. Note: I will probably link to or copy a lot of info that I have gathered from other sites, such as Elitist Jerks, some posts here, etc. Some of this is posted in sections on my guild's forum, we have been collecting data and opinions for a long, long time, and I'll try to give credit where credit is due.
My first build is the not-so-popular 30/21/10.
A quick overview:
This build is an alternate to the UA builds, offering competitive numbers on boss fights while crunching out much bigger ones on trash. Between Siphon Life, Demonic Aegis and over 1000 shadow damage, you are entirely self sufficient as far as mana goes. Always life tap so Siphon Life is never over healing you, and never life tap if some of the mana gained is wasted.
This is build option A, use it if you prefer to have Fel Concentration. If you would rather have Suppression to make up some +hit difference, take it out of Fel Concentration. There is 1 point in imp. Imp, simply because you need a filler to get to DS, if you feel that it would be better spent in imp. VW or something, by all means place it there. Obviously, this spec depends on sacrificing your succy, so any of the 5 available filler talents all unfortunately pertain to pets.
This is a somewhat later-in-game build, and as such I would not advise choosing this build over a 0/21/40 until you can reach 1000 shadow damage, 5%-8% hit (without suppression!), >10% crit. You want those Shadowbolts to be punching through the resists as much as possible, and critting enough to help keep up the ISB debuff.
Dot rotation: CoS/CoD, Siphon, Corruption, spam Shadowbolts. Refresh Siphon Life/Corruption/CoD as needed..But never early! on trash, just CoS-> Shadowbolt spam. (If your careful with your targetting, you can throw a Corruption on a couple mobs while your tank builds aggro on the main target, nightfall procs are always welcome. If you corrupt the sheep....don't blame me.)
With 30/21/10 your siphon life can almost completely keep up with your life tap (you only need about 750 additional health points per minute). You life tap less because of the extra mana, and therefore can dps more. You also get an extra instant dot. You can heal yourself with drain-life faster than bandaging and still do damage at the same time. NOTE: This does NOT mean that drain life is a considerable source of DPS, it simply means that drain life is more effective than a bandaid.
I would like to add this explanation as to why CoD is more favorable than CoA, and also why one shouldn't put points into Imp. CoA:
(from EJ): Always use Curse of Doom over Curse of Agony, unless you know that boss will die in less than a minute. The reason is that you will spend 2 more seconds per minute on average casting CoA than CoD, while only getting about 275 more damage. You could be using that 2 second cast time to cast a shadow bolt (about 987 dmg per casting second). For this reason, it is pointless to put talent points into Improved CoA. Even considering CoD will be resisted 10% of the time, Imp CoA only returns an extra 40 dmg per minute per talent point. You'd be better of putting more into Supression (about 160 dmg per minute per talent point with this build). (Calculations based on 1100 shadow damage and 15% crit.)
My 2nd alternate is the 0/21/40 Build, shadow not fire damage mind you.
Quick Summary: Shadow / Destro builds still crank out very high DPS, especially burst DPS. In fights where adds need to be nuked down quickly, a 0/21/40 build will be much better than a 41/0/20 build. They are also the best at keeping up the Imp SB debuff for 20% extra shadow damage for the whole raid. Limitations of the build are the reliance on +spell hit gear AND +spell crit gear, and a weaker mana pool.
It is a gear dependent build in that a high +hit/crit/dmg combination is necessary, but it does start to scale nicely with the upper tier gear. Affliction locks dont get much bonus out of the +hit (likely already capped with suppression), +crit or even +haste from BT/hyjal. Unfortunately, not much gear after the frozen shadoweave set that is just pure +shadow dmg.
This is the spec of choice for the #1 warlock, Buzzkill.
Just to point out: he has +1522 shadow damage, 201 hit, and 22% crit (fully buffed). And yes, he is shadow.
Spell rotation. Always start with your designated curse (Curse of Shadow, Doom, etc.), then just cast Corruption, followed by Immolate .. then spam shadowbolt until a dot expires and do it all over again. Also because of the high mana usage with this build, try and life tap often and keep your HP just below full. When you see a Heal over Time (HoT) hit your from a healer, tap your life into mana so you don't waste any of the HoT. Whatever you do, don't wait until your are out of mana (OOM) and then tap all your life back to mana. Tapping a little bit often is a much better way and wont put you at risk of getting 1-shotted because you tapped all your life out. Generally try and life tap at least once in each spell rotation.
The advantages:
Biggest shadowbolt crits, period.
Excellent burst damage.
Improved Shadow Bolt debuff will be up almost constantly (aka. moreso with this build than with any other).
The disadvantages:
Gear dependent.
Aggro can be spikey and problematic in some situations.
The least mana efficient.
Not mobile, at all. Every spell used has a cast time.
My last build is the 41/0/20 Build.
Note: this build is extremely, extremely flexible. The main concept is that you have UA and Bane, feel free to spend your points however you want in order to get there. Some may opt to choose Suppression over Fel Concentration, as you ideally should until you can reach the hit cap.
I'm not going to say much about this build, as almost everyone has seen it and probably used it at some point.
Manage your dots, dont refresh early, use shadowbolts as a filler. This is the best mobility spec, you dots still tick while you have to move, and you have 3 instants at your disposal.
I would like to do a few things in closing.
1. I'm sure I have missed some things while posting this. Please, point them out and I will gladly edit them in.
2. These are my builds, I do not claim them to be the raiding builds.
3. Credit to Loki, for flawlessly proving that Shadow damage will outperform Fire. Actually helped change one of our warlock's spec.
4. To all the locks with 3/3 Malediction, or who are on imp duty, thank you.
And lastly, I would like to introduce someone to you. Those of you who don't know him, his name is Dr. Boom. He is the best way to test your DPS, with any given spec. Assuming your 70 and have a flying mount, travel to Netherstorm, find Dr. Boom, and land on one of the rocks behind him. You are out of range of his attacks, he has 650k+ hp, so feel free to unload on him. Test your specs, find which one you like the most, and optimize your cast rotation for maximum DPS.
Edited, Sep 24th 2007 1:13am by PriestOfSouls