NPCs composing that spawngroup :

a_sepulcher_skeleton (25%)

a_sepulcher_skeleton (25%)

elementalbone_skeleton (25%)

greater_war_boned_skeleton (25%)

NPCs spawning around that spawngroup :
(Max range : 200)

charasis_74, range=191 (244,117,5)

charasis_87, range=78 (26,243,-194)

a_sepulcher_skeleton (100%)

charasis_113, range=136 (-55,99,-194)

greater_plaguebone (100%)

charasis_118, range=77 (-12,147,22)

charasis_121, range=55 (12,147,22)

charasis_136, range=146 (-72,234,23)

a_bottomless_feaster (100%)

charasis_140, range=89 (131,228,23)

charasis_141, range=131 (143,275,23)

a_bottomless_feaster (100%)

charasis_142, range=146 (-72,234,22)

a_sepulcher_skeleton (100%)

charasis_144, range=97 (157,189,23)

charasis_145, range=21 (79,184,22)

charasis_146, range=161 (-6,320,22)

charasis_147, range=186 (12,353,22)

charasis_148, range=112 (9,273,21)

a_bile_golem (100%)

charasis_149, range=116 (-20,257,22)

charasis_150, range=143 (157,279,22)

charasis_152, range=51 (60,224,21)

charasis_157, range=36 (25,165,-194)

a_pyre_golem (50%)
a_pyre_golem (50%)

charasis_158, range=86 (-25,165,-194)

a_pyre_golem (50%)
a_pyre_golem (50%)

charasis_159, range=101 (-2,92,-188)

a_bottomless_gnawer (50%)
greater_war_boned_skeleton (50%)

pulsating_bile_189511, range=181 (239,138,5)