NPCs composing that spawngroup :

greater_war_boned_skeleton (100%)

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

citymist_19, range=51 (-19,-38,1)

citymist_46, range=96 (66,65,2)

citymist_55, range=22 (24,-45,2)

citymist_68, range=65 (-30,-48,273)

citymist_131, range=81 (-13,45,28)

citymist_133, range=72 (13,46,28)

greater_plaguebone (25%)

citymist_172, range=83 (102,-67,2)