NPCs composing that spawngroup :

a_shadow (25%)

greater_spurbone (25%)

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

citymist_105, range=39 (-241,-474,75)

citymist_137, range=75 (-225,-438,5)

citymist_142, range=44 (-231,-557,3)

Captain_of_the_Guard (10%)
greater_spurbone (90%)

citymist_145, range=80 (-236,-593,3)

Captain_of_the_Guard (10%)
greater_spurbone (90%)

citymist_147, range=73 (-162,-513,5)

citymist_151, range=17 (-231,-496,3)

citymist_spectral_courier0_takp_import_v0, range=74 (-161,-512,5)

citymist_223157_takp_import_v0, range=25 (-260,-519,75)

gyrating_goo (100%)

citymist_222977_takp_import_v0, range=39 (-245,-475,75)

citymist_223158_takp_import_v0, range=27 (-261,-522,75)

gyrating_goo (50%)
gyrating_goo (50%)

citymist_222963_takp_import_v0, range=84 (-152,-528,3)

citymist_greater_spurbone86_takp_import_v0, range=24 (-219,-532,3)

greater_spurbone (50%)
greater_spurbone (50%)

citymist_222960_takp_import_v0, range=1 (-234,-512,5)