The written guide for this spec is in progress.
Warlock · Ranged DPS
Talent descriptions come from the game client files (build 1.60.1.70685). Some talent values are applied by the game server and can differ in game; ranks marked as Classic Era data are not in the Forever client yet.
Abilities
Spells of this school and active talents of this tree.
CorruptionLevel 4Corrupts the target, causing 438 Shadow damage over 18 sec.
Curse of WeaknessLevel 4Physical damage caused by the target is reduced by 37 for 2 min.
Life TapLevel 6Converts 420 Health into 420 Mana for you.
Bane of AgonyLevel 8Afflicts the target with agony, causing 552 Shadow damage over 24 sec.
FearLevel 8Strikes fear in the enemy, causing it to run in fear for up to 20 sec.
Drain SoulLevel 10Drains the soul of the target, causing 420 Shadow damage over 15 sec.
Curse of RecklessnessLevel 14Curses the target with recklessness, reducing the target's armor by 505 for 2 min.
Drain LifeLevel 14Transfers 51 health every 1 second from the target to the caster.
Curse of the ElementsLevel 20Curses the target for 5 min, reducing Magic resistances by 75 and increasing Magic damage taken by 10%.
Drain ManaLevel 24Transfers 136 Mana every 1 sec from the target to the caster.
Curse of TonguesLevel 26Forces the target to speak in Demonic, increasing the casting time of all spells by 60%.
Howl of TerrorLevel 40Howl, causing enemies within 10 yds to flee in terror for 15 sec.
WrackLevel 40Tears the target apart from within, inflicting 36 Shadow damage every 1 sec and increasing the damage they take from your other Shadow damage over time effects 
Death CoilLevel 42Causes the enemy target to run in horror for 3 sec and causes 454 Shadow damage.
Bane of DoomLevel 60Afflicts the target with impending doom, causing 1742 Shadow damage after 1 min.
Siphon LifeTalentTransfers 11 health from the target to the caster every 3 sec.
Amplify CurseTalentIncreases the effect of your next Curse of Weakness or Bane of Agony by 50%, or your next Curse of Exhaustion by 20%.
Curse of ExhaustionTalentReduces the target's movement speed by 30% for 12 sec.
Changes vs Classic
- ChangedSuppressionEffect or wording changed
Classic → Forever
ClassicReduces the chance for enemies to resist your Affliction spells by 2%.
ForeverImproves your chance to hit by 5% and reduces all threat you generate by 20%.
- ChangedImproved CorruptionEffect or wording changed
Classic → Forever
ClassicReduces the casting time of your Corruption spell by 0.4 sec.
ForeverReduces the casting time of your Corruption spell by 2 sec and increases the damage it deals by 10%.
- ReplacedImproved Drain Life → Soul Siphon
- ReplacedImproved Curse of Agony → Improved Bane of Agony
- ChangedFel ConcentrationEffect or wording changed
Classic → Forever
ClassicGives you a 14% chance to avoid interruption caused by damage while channeling the Drain Life, Drain Mana, or Drain Soul spell.
ForeverGives your Drain Life, Drain Mana, Drain Soul, and Wrack spells a 70% chance to not lose casting time when you take damage.
- ChangedAmplify CurseEffect or wording changed
Classic → Forever
ClassicIncreases the effect of your next Curse of Weakness or Curse of Agony by 50%, or your next Curse of Exhaustion by 20%. Lasts 30 sec.
ForeverIncreases the effect of your next Curse of Weakness or Bane of Agony by 50%, or your next Curse of Exhaustion by 20%. Lasts 30 sec.
- ChangedNightfallEffect or wording changed
Classic → Forever
ClassicGives your Corruption and Drain Life spells a 2% chance to cause you to enter a Shadow Trance state after damaging the opponent. The Shadow Trance state reduces the casting time of your next Shadow Bolt spell by 100%.
ForeverGives your Corruption, Drain Soul, Drain Life, and Wrack spells a 4% chance to cause you to enter a Shadow Trance after damaging the opponent. The Shadow Trance reduces the casting time of your next Shadow Bolt spell by 100%.