|Seed of Corruption|
|Suppression, Improved Drain Soul, Grim Reach, Shadow Embrace, Shadow Mastery, Contagion, Demonic Knowledge|
- "Remember to share this with your friends. They are sure to enjoy it, too."
Seed of Corruption, often abbreviated SoC, is a warlock Shadow-based Damage over Time spell that does Area of Effect Direct Damage after the target receives a specific amount of damage. This spell was introduced in The Burning Crusade expansion.
Seed of Corruption is a binary spell, so it will either be completely resisted (no DoT and no explosion) or land for full damage. If the DoT lands, an explosion damaging everything around it is guaranteed.
Seed of Corruption can not be used in combination with Corruption. If SoC is cast on a target affected by Corruption, SoC replaces Corruption. If Corruption is cast on a target affected by SoC, it fails with the message "A more powerful spell is already active".
SoC detonation can be set off by any damage, not necessarily from the Warlock. For example, casting SoC on a mob being attacked by other members of the group is likely to produce an instant explosion. SoC detonation consumes the effect (hence stops the damage-over-time). It damages all enemies within 15 yds of the target. The direct damage from the explosion can crit.
Its damage is affected by talents and gear, but the detonation threshold is not. In other words, SoC will detonate as soon as target receives 1044 damage, even though it may only take 2-3 ticks of the DoT to deal this much damage. In essence, extra +dmg gear will "shorten the fuse" (make the fuse burn faster). The DoT part receives 150% bonus damage from +dmg gear (damage is spread out over 6 tics), the detonation part gets 16.6% bonus damage.
Tips and tactics
Due to its overall damage limitation, which is around 13,500 to all affected mobs (before all modifiers like criticals and certain debuffs), Seed of Corruption is inferior to Hellfire when dealing with large groups (like around fifteen or even more mobs).
Seed of Corruption is most useful in situations where you have to deal with multiple mobs at the same time and you have a tank with AOE taunt (such as Voidwalker). As soon as the tank grabs aggro, quickly cast SoC on as many mobs as you can. Try not to target mobs taking damage from the tank. If all goes well, detonations will wipe all mobs in no time. However, there have to be at least 3-4 mobs in the group, and they shouldn't have more than 10,000 hp each. If you can't kill everyone with the initial round of detonations, you'll have a pack of very angry mobs at half-health beating on you and you won't be able to do anything. If you have a competent and well geared Paladin who is Aoe tanking, this spell can be used to quickly clear large groups of mobs, especially if there are other warlocks and/or mages in the group contributing AoE damage. This tactic can clear dungeons incredibly quickly (particularly with affliction warlocks, who bring low downtime and high shadow damage to the equation).
Seed of Corruption is best used when you don't have aggro. It's hard to cast a 2-second spell while taking damage from multiple mobs. If you have mobs attacking you already, you're better off using Hellfire over SoC.
In PvP, it can be useful to steadily cast it at a target which constantly takes damage, as the previous SoC can trigger before the next one arrives; this can be used to deal immense amounts of damage in short time. It can also be cast on pets, and if you can get the pet close to the owner when it detonates, it can provide additional damage to its owner.
Patch 2.1.0 (22-May-2007): This spell will now interact properly with town guards when bystanders are hit by its detonation in a duel.
Patch 2.3.0 (13-Nov-2007): Seed of Corruption detonation will now obey line of sight.