NPCs composing that spawngroup :

a_berserk_fiend (16%)

a_deranged_madman (16%)

a_fog_golem (16%)

greater_war_boned_skeleton (16%)

NPCs spawning around that spawngroup :
(Max range : 100)

citymist_35, range=89 (102,-350,3)

a_bewildered_wanderer (50%)
a_haze_golem (50%)

citymist_54, range=74 (133,-353,39)

a_fog_golem (34%)
a_rambling_fanatic (33%)

citymist_61, range=86 (130,-364,-13)

citymist_62, range=91 (227,-348,-14)

a_shadow (25%)
plaguebone_skeleton (25%)

citymist_85, range=97 (121,-373,256)

citymist_86, range=49 (121,-312,256)

citymist_87, range=63 (136,-342,275)

citymist_93, range=50 (212,-281,76)

citymist_94, range=97 (249,-327,77)

citymist_96, range=88 (79,-314,77)

citymist_116, range=96 (182,-378,65)

citymist_117, range=83 (214,-349,64)

citymist_127, range=72 (219,-328,274)

citymist_128, range=49 (189,-325,274)

citymist_129, range=39 (201,-286,275)

greater_war_boned_skeleton (25%)
greater_war_boned_skeleton (25%)

citymist_132, range=43 (189,-250,1)

citymist_159, range=60 (105,-265,2)