NPCs composing that spawngroup :

spectral_guardian (100%)

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

kaesora_10, range=54 (93,-440,-101)

skeletal_minion (100%)

kaesora_11, range=42 (92,-394,-99)

guardian_of_Xalgoz (50%)
skeletal_minion (50%)

kaesora_26, range=5 (136,-409,-98)

failed_crypt_raider (10%)
spectral_guardian (90%)

kaesora_37, range=180 (178,-579,-109)

skeletal_warder (100%)
skeletal_warder (100%)

kaesora_43, range=49 (167,-441,-101)

skeletal_warder (100%)

kaesora_51, range=133 (9,-356,-101)

skeletal_warder (100%)

kaesora_52, range=146 (40,-516,-107)

kaesora_53, range=130 (63,-514,-109)

kaesora_54, range=140 (46,-514,-106)

kaesora_55, range=123 (51,-495,-109)

kaesora_58, range=199 (141,-603,-108)

kaesora_65, range=77 (57,-395,-68)

spectral_guardian (100%)

kaesora_67, range=160 (258,-302,-108)

kaesora_68, range=135 (219,-298,-108)

kaesora_69, range=103 (179,-312,-109)

skeletal_warder (50%)
skeletal_warder (50%)

kaesora_70, range=131 (246,-336,-108)

minion_of_Xalgoz (100%)

kaesora_71, range=143 (263,-341,-106)

kaesora_72, range=126 (176,-285,-109)

minion_of_Xalgoz (50%)
skeletal_minion (50%)

kaesora_73, range=106 (150,-299,-109)

kaesora_74, range=33 (136,-371,-73)

an_iksar_spectre (50%)
a_tome_keeper (50%)

kaesora_87, range=111 (57,-323,-109)

kaesora_93, range=20 (115,-395,-98)

spectral_guardian (80%)
tortured_librarian (20%)

kaesora_94, range=20 (116,-415,-99)

spectral_guardian (80%)
spectral_librarian (20%)