NPCs composing that spawngroup :

a_pyre_golem (33%)

a_pyre_golem (33%)

a_pyre_golem (34%)

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

charasis_87, range=97 (26,243,-194)

a_sepulcher_skeleton (100%)

charasis_113, range=81 (-55,99,-194)

greater_plaguebone (100%)

charasis_118, range=24 (-12,147,22)

charasis_145, range=76 (79,184,22)

charasis_151, range=55 (61,173,22)

charasis_152, range=90 (60,224,21)

charasis_157, range=22 (25,165,-194)

a_pyre_golem (50%)
a_pyre_golem (50%)

charasis_158, range=41 (-25,165,-194)

a_pyre_golem (50%)
a_pyre_golem (50%)

charasis_159, range=55 (-2,92,-188)

a_bottomless_gnawer (50%)
greater_war_boned_skeleton (50%)