NPCs composing that spawngroup :

greater_war_boned_skeleton (100%)

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

citymist_35, range=25 (102,-350,3)

a_bewildered_wanderer (50%)
a_haze_golem (50%)

citymist_54, range=56 (133,-353,39)

a_fog_golem (34%)
a_rambling_fanatic (33%)

citymist_61, range=57 (130,-364,-13)

citymist_80, range=47 (29,-344,255)

#Gyrating_Green_Slime (10%)
gyrating_goo (90%)

citymist_85, range=53 (121,-373,256)

citymist_86, range=53 (121,-312,256)

citymist_87, range=59 (136,-342,275)

citymist_96, range=29 (79,-314,77)

citymist_138, range=70 (64,-412,10)

citymist_154, range=88 (0,-387,10)

a_haze_golem (50%)

citymist_159, range=82 (105,-265,2)