NPCs composing that spawngroup :

an_Obliteration_conjurer (100%)

NPCs spawning around that spawngroup :
(Max range : 200)

oldcommons88999, range=42 (109,3176,53)

oldcommons89003, range=34 (101,3175,54)

oldcommons89004, range=34 (101,3175,56)

oldcommons89005, range=34 (101,3174,54)

oldcommons89010, range=31 (95,3179,53)

oldcommons89014, range=18 (82,3147,52)

oldcommons89017, range=148 (-59,3235,0)

oldcommons89029, range=197 (264,3195,17)