NPCs composing that spawngroup :

a_fog_golem (50%)

greater_spurbone (25%)

greater_spurbone (25%)

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

citymist_54, range=82 (133,-353,39)

a_fog_golem (34%)
a_rambling_fanatic (33%)

citymist_60, range=53 (225,-426,39)

a_fog_golem (33%)
a_lost_one (33%)

citymist_61, range=74 (130,-364,-13)

citymist_62, range=95 (227,-348,-14)

a_shadow (34%)
plaguebone_skeleton (33%)

citymist_85, range=73 (121,-373,256)

citymist_87, range=91 (136,-342,275)

citymist_88, range=40 (199,-396,275)

citymist_116, range=49 (182,-378,65)

citymist_117, range=88 (214,-349,64)

citymist_171, range=87 (100,-475,3)

a_haze_golem (33%)
a_haze_golem (34%)

citymist_223157_takp_import_v0, range=95 (147,-334,273)

citymist_222986_takp_import_v0, range=92 (136,-341,275)

citymist_222987_takp_import_v0, range=88 (117,-357,257)

a_mist_golem (50%)
a_wraith (25%)
a_wraith (25%)

citymist_222984_takp_import_v0, range=53 (210,-389,274)

citymist_222985_takp_import_v0, range=41 (199,-395,273)

citymist_222970_takp_import_v0, range=89 (215,-348,63)

citymist_a_phantom39_takp_import_v0, range=76 (182,-350,65)

a_phantom (50%)
a_phantom (50%)

citymist_223158_takp_import_v0, range=91 (115,-354,75)

gyrating_goo (50%)
gyrating_goo (50%)

citymist_222963_takp_import_v0, range=54 (226,-424,4)

citymist_222971_takp_import_v0, range=26 (198,-424,4)

citymist_222968_takp_import_v0, range=53 (225,-425,41)

citymist_222966_takp_import_v0, range=58 (152,-371,41)

citymist_greater_spurbone86_takp_import_v0, range=1 (171,-425,3)

greater_spurbone (50%)
greater_spurbone (50%)

citymist_222972_takp_import_v0, range=76 (182,-350,63)

citymist_222969_takp_import_v0, range=95 (198,-334,-11)

citymist_an_apparition111_takp_import_v0, range=83 (133,-352,41)

an_apparition (50%)
an_apparition (50%)