NPCs composing that spawngroup :

a_deranged_madman (50%)

greater_plaguebone (50%)

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

citymist_52, range=51 (194,-14,-9)

citymist_74, range=36 (150,-42,273)

citymist_119, range=15 (140,-21,-9)

a_shadow (20%)
greater_spurbone (20%)

citymist_172, range=73 (102,-67,2)

citymist_223157_takp_import_v0, range=67 (80,-29,273)

gyrating_goo (100%)

citymist_222990_takp_import_v0, range=25 (139,19,273)

a_mist_golem (50%)
greater_war_boned_skeleton (50%)

citymist_222975_takp_import_v0, range=88 (230,8,5)

citymist_222974_takp_import_v0, range=27 (116,-1,3)

citymist_greater_spurbone86_takp_import_v0, range=53 (91,5,3)

greater_spurbone (50%)
greater_spurbone (50%)