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Combating the Corruption
Kill 10 types of corrupted creatures in Uldum or Vale of Eternal Blossoms during Black Empire Assaults.
Combating the Corruption requires you to kill 10 different types of corrupted creatures in Uldum or Vale of Eternal Blossoms during active Black Empire Assaults.
Activate a Black Empire Assault
Travel to either Uldum or Vale of Eternal Blossoms when a Black Empire Assault is active. You need to be at least level 60 to access N'Zoth assaults.
Hunt Corrupted Acolytes
Search for Corrupted Acolytes at the following locations: at 39.86 in the 49.53 area, at 73.20 in the 51.23 area, at 73.68 in the 49.71 area, at 80.02 in the 49.4 area, at 79.74 in the 46.26 area, at 84.50 in the 47.75 area, at 83.81 in the 49.10 area, at 42.46 in the 57.12 area, at 41.50 in the 55.80 area, at 42.07 in the 54.87 area, and at 43.11 in the 53.79 area. These mobs have a chance to spawn without killing placeholder versions, depending on your current shard.
Hunt Corrupted Bonestrippers
Search for Corrupted Bonestrippers at 43.81 in the 55.71 area, at 17.70 in the 57.47 area, at 20.55 in the 56.56 area, at 24.43 in the 56.52 area, at 27.41 in the 57.33 area, and at 60.84 in the 59.58 area.
Hunt Corrupted Beheaders
Search for Corrupted Beheaders at 42.80 in the 58.39 area, at 46.42 in the 52.58 area, at 49.52 in the 60.4 area, at 71.22 in the 51.1 area, at 78.69 in the 50.5 area, at 73.13 in the 50.24 area, at 85.76 in the 50.53 area, and at 84.67 in the 49.11 area.
Kill Remaining Corrupted Types
You only need 10 different corrupted creature types total for the achievement, not all 19. The remaining types include Corrupted Assassin, Corrupted Bloodseeker, Corrupted Despoiler, Corrupted Dominator, Corrupted Doomsayer, Corrupted Fleshbeast, Corrupted Jailer, Corrupted Mind Eater, Corrupted Neferset Guard, Corrupted Observer, Corrupted Putrefaction, Corrupted Summoner, Corrupted Thaumaturge, Corrupted Thoughtstealer, Corrupted Tormentor, and Corrupted Watcher. Corrupted Bloodseeker appears to be a rare spawn that always spawns corrupted, so no placeholder kills are needed for it.
Shard Hop if Needed
Corrupted versions of these NPCs have a chance to spawn immediately on any given shard without requiring placeholder kills. If you are not finding corrupted versions, switching shards can help, though this requires an active subscription — trial accounts cannot be used for this.
Note Placeholder Spawn Rules
If corrupted mobs are not present on your shard, killing placeholder mobs can eventually trigger their corrupted versions to spawn. Note that Corrupted Summoner spawns from Black Empire Conjurers, Corrupted Neferset Guard spawns from Voidwarped Neferset, and Corrupted Tormentor spawns from Tentacle Tormentors.
Tips
The achievement requires only 10 of the 19 corrupted creature types, so target whichever types are most active on your current shard.
Corrupted Bloodseeker appears to always spawn as corrupted and does not require killing placeholder mobs.