Destruction
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Improved Shadow Bolt – 5 ranks.
Your Shadow Bolt Critical strikes increase Shadow damage dealt to the target by 4 – 20% until 4 non-periodic damage sources are applied. Effect lasts a maximum of 12 seconds.
The charges of this effect are not consumed by DoTs, which makes it pretty nice.
Considering it only improved shadow damage, its not too interesting if you're planning to go fire all the way. You're better off getting Cataclysm as your tier 1 talent in that case.
Cataclysm – 5 ranks.
Reduced the manacost of your destruction spells by 1 - 5%.
Helpful, although 5% is fairly limited bang for the buck for a 5 rank talent, even a first tier one.
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Bane – 5 ranks.
Reduces the cast time of your Shadow Bolt and Immolate spells by 0.1 – 0.5 seconds, and the casting time of Soul Fire by 0.4 – 2 seconds.
Beside the extra speedy cast time for immolate, which is quite nice by itself, this talents‘ main power lies in shadow bolt. The immolate effect gains more value if you plan to move on to Conflagrate in this tree.
0.5 seconds shaved off 3 seconds is a 20% improvement for shadowbolt cast time, which equals a 20% damage increase when spamming shadowbolt.
Aftermath – 5 ranks.
Gives your Destruction spells a 2 – 10% chance to daze the target for 5 seconds.
I’m sure daze sounds familiar, it’s the spell mobs like to spam on you when you try to run away from them. It will slow your movement speed considerably.
The reason I rank this talent so low is the chance of it actually occurring, which is quite low, coupled with the short duration. It will not trigger from dot damage, otherwise it would probably be pretty nice.

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Improved Firebolt – 2 ranks.
Reduces the cast time of your Imp’s Firebolt spell by 0.25 – 0.5 seconds.
This is a nice talent, if you use your imp for damagedealing much. It will up his dps by 25% per point, for as long as he has mana. You can deal with his mana needs if you have the Mana Feed talent in Demonology. If you do not, I would not bother with this talent.
Improved Lash of Pain – 2 ranks.
Reduces the cooldown of your Succubus’ Lash of Pain spell by 3 – 6 seconds.
While this is a nice boost for your succubus damage and ability to build aggro (When that’s needed), it has a very minor effect on your overall damage output. There are better talents out there.
Devastation – 5 ranks.
Increases the critical strike chance of your Destruction spells by 1 - 5%
Extra chance to crit with spells is always good, and this one especially so when you plan to get the Ruin talent.
It also improves your chances of activating Improved Shadowbolt, provided you have that talent.
Shadowburn – 1 rank.
Instantly blasts the target for 87 – 99 (spell rank 1) up to 597 – 665 (spell rank 8) damage. If the target dies within 5 seconds after casting Shadowburn and yields experience or honor, the caster gains a soul shard. Requires a soul shard as reagent to use.
This is a decent talent for PvE, as it let’s you pack a little extra punch, and provides you with a way to finish off anything low on hp easily. It performs especially well in difficult scenarios where you need to do a little extra damage fast in order to save a fight.
It truly shines in PvP however. We don’t have any instant nukes beside Death Coil, excluding Conflagrate (tier 7 talent) and Nightfall or Backlash procs.
Instant nukes are so important in PvP because you cannot leave anyone at low hp for any period of time. They will get healed, or heal themselves, in a split second. Shadowburn gives you an extra means to deal damage instantly, which is invaluable.

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Intensity – 2 ranks.
Gives you a 35 – 70% chance to resist interruption caused by damage while channeling any destruction spell.
This talent is perfect for the destro lock, mainly in PvP where it can be difficult to get a spell with a cast time off.
Destructive Reach – 2 ranks.
Increases the range of your Destruction spells by 10 – 20% and reduces threat caused by Destruction spells by 5 - 10%.
The threat reduction is worth a lot to raiding destro and non-destro locks alike, while the added range is useful in many situations.
It let’s you move out of range of an AE’ing boss, while staying in nuking range.
In PvP, it can be difficult to get a nuke off on someone that is trying to get away. This talent gives you a little more freedom there.
The extra range allows you to stand further away when engaging a fight, and gives you a little extra casting time while the enemy covers the extra ground.
The downside is that in order to give your affliction spells a similar range boost, you will need to delve into the affliction tree and get the Grim Reach talent.
Improved Searing Pain – 3 ranks.
Increases the critical strike chance of your Searing Pain spell by 4 - 10%.
This is quite a nice talent, especially coupled with Ruin, but only if you use SP alot in PvP.
However, if you are going to get Shadow and Flame, I wouldnt get this talent. Searing Pain is not useful for PvE due to the extra agro it causes.
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Pyroclasm – 2 ranks.
Gives your Rain of Fire and Hellfire spells a 13 – 26% chance to stun the target for 3 sec.
This description is a little misleading. The chance for this to proc is once for one entire AE cast, instead of every time it deals damage. Mostly useless.
It might be fun to gather a bunch of locks with this talent and stun the hell out of a bunch of mobs though. (This is probably the reason they nerfed this talent to its current useless state - you’d be able to cause a chainstun with just a couple of locks before)
Improved Immolate – 5 ranks.
Increases the intial damage of your immolate spell by 5 – 25%.
A nice increase, and it softens the loss of the dot damage by adding more nuke power when you use Immo with conflagrate.

Ruin – 1 rank.
Increases the critical strike damage bonus of your Destruction spells by 100%.
A normal critical spell strike will only hit for 50% extra damage, so this is a significant upgrade. This talent has great value in PvP, where a big crit can end someone’s life quickly, giving them no chance to heal or run.
Death coil (being an affliction spell) is not affected by this talent, but Shadow Bolt, Searing Pain, Immolate and Shadowburn are. The value of this talent improves further as you add the devastation talent bonus and obtain gear with extra spell crit chance.
Ruin effectively doubles the value of spell crit rating for you.
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Nether Protection – 3 ranks.
After being hit with a Shadow or Fire spell, you have a 10% - 30% chance to become immune to Shadow and Fire spells for 4 seconds.
This talent has very little PvE value, but it is immensely useful in PvP when fighting other locks, shadow priests or fire mages. Having fought plenty of locks with this talent as an affliction lock myself, I can safely say its incredibly frustrating.
Emberstorm – 5 ranks.
Increases the damage done by your Fire spells by 2 – 10%.
The damage increase to Searing Pain, Immolate and Conflagrate and both our AE’s is substantial enough to make this a good pick. There is little reason not to get this talent if you’re working your way to Conflagrate.
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Backlash – 3 ranks.
Iincreases your critical strike chance with spells by an additional 1 – 3% and gives you a 8 – 25% chance when hit by a physical attack to reduce the cast time of your next Shadow Bolt or Incinerate spell by 100%. This effect lasts 8 seconds and will not occur more than once every 8 seconds.
With the tremendous value instant nukes have in PvP, and the quite high chance for this to proc (25% is basically a guaranteed proc in a fight against a melee or pet class)
The talent has little worth for PvE, however.

Conflagrate – 1 rank.
Ignites a target that is already afflicted by Immolate, dealing 632 to 788 Fire damage (at level 70) and consuming the Immolate spell.
This, beside being a good way to deal damage faster, essentially provides you with another instant cast nuke (although it does require the preparation of landing immolate first), and I believe I mentioned the value of that for PvP once or twice already. ;) Landing Immolate to follow up with Conflagrate, Death Coil and Shadowburn will make short work of a hapless gnome. (or any other race, ofcourse :)
Soul Leech – 3 ranks.
Igives your Shadow Bolt, Soul Fire, Incinerate, Searing Pain and Conflagrate spells a 10 – 30% chance to return health equal to 20% of the damage caused.
While the effect of this talent may seem small, it definitely adds up fast. Destro locks have more difficulty gaining back life than other specs, and this talent helps offset that.
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Shadow and Flame – 5 ranks.
Your Shadow Bolt and Incinerate spells gain an additional 4 – 20% of your bonus spell damage effects.
This talent affects the spell damage bonus co雈ficient, upping it by a max of 20%. This results are; Shadow Bolt will receive 85.7 + 20 = 105.7% from your spell damage effects.
Incinerate will receive 71.4 + 20 = 91.4% from your spell damage effects.
Considering how frequently a destro lock uses these spells, the talent is very helpful.
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Shadowfury – 1 rank.
Shadowfury is unleashed, causing 343 – 407 up to 612 – 728 shadow damage (at level 70) and stunning all enemies within 8 yards for 2 seconds.
A quite nice end tree talent, the 20 second cooldown isn't too bad either. The tiny cast time (0.5 sec) makes you have to stand still while casting it though, and the fact that you must target the spell demands a little more from the warlock in PvP. The stun makes it excellent as an additional way to get a little room between you and your target, as well as providing another way to interrupt spells.