NPCs composing that spawngroup :

an_undertaker_skeleton (20%)

a_helot_skeleton (20%)

a_helot_spectre (20%)

a_helot_spectre (20%)

a_sepulcher_skeleton (20%)

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

charasis_27, range=194 (12,-147,22)

a_pyre_golem (50%)
a_pyre_golem (50%)

charasis_29, range=170 (-12,-147,22)

charasis_30, range=184 (-1,-111,21)

a_pulsating_bile (50%)
hexbone_skeleton (50%)

charasis_33, range=167 (-28,-207,22)

charasis_52, range=86 (-267,-127,22)

hexbone_skeleton (100%)

charasis_58, range=187 (-269,25,4)

a_sepulcher_skeleton (100%)

charasis_59, range=92 (-274,-140,23)

charasis_60, range=72 (-250,-114,22)

charasis_62, range=80 (-223,-71,22)

charasis_93, range=185 (-367,-137,4)

charasis_109, range=190 (-367,-96,5)

charasis_110, range=199 (-17,-29,-158)

an_undead_oblation (100%)

charasis_111, range=130 (-96,-42,-189)

greater_war_boned_skeleton (100%)

charasis_176, range=163 (-25,-185,-194)

charasis_178, range=96 (-244,-66,-127)

a_sepulcher_skeleton (100%)

charasis_179, range=67 (-191,-207,-157)

a_bottomless_feaster (100%)

charasis_180, range=127 (-227,-21,-122)

charasis_181, range=139 (-257,-22,-122)

charasis_182, range=107 (-267,-206,-158)

charasis_183, range=106 (-239,-230,-158)