NPCs composing that spawngroup :

#Echo_of_Sebilis (5%)

myconid_warrior (95%)

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

sebilis_6, range=145 (-1413,150,-194)

sebilis_19, range=174 (-1122,178,-175)

sebilis_24, range=110 (-1350,133,-176)

sebilis_37, range=75 (-1253,159,-175)

#Echo_of_Sebilis (5%)
myconid_priest (95%)

sebilis_39, range=86 (-1211,261,-175)

#Echo_of_Sebilis (5%)
myconid_warrior (95%)

sebilis_110, range=104 (-1189,195,-175)

sebilis_111, range=101 (-1188,212,-175)

sebilis_112, range=150 (-1143,259,-175)

sebilis_118, range=136 (-1324,358,-175)

sebilis_119, range=145 (-1306,371,-175)

sebilis_124, range=168 (-1121,235,-175)

sebilis_130, range=158 (-1147,155,-105)

sebilis_132, range=183 (-1145,339,-74)

sebilis_133, range=91 (-1301,135,-123)

crypt_caretaker (20%)
dar_ghoul_knight (80%)

sebilis_139, range=88 (-1367,185,-104)

Imperial_Crypt_Guardian (100%)
Imperial_Crypt_Guardian (100%)

sebilis_140, range=27 (-1310,243,-103)

sebilis_141, range=198 (-1488,234,-122)

skeletal_champion (100%)

sebilis_142, range=136 (-1424,243,-103)

Harbinger_Freglor (20%)
skeletal_harbinger (80%)

sebilis_183, range=158 (-1159,136,-175)

sebilis_192, range=102 (-1240,316,-111)

sebilis_193, range=73 (-1243,283,-112)

sebilis_194, range=179 (-1148,115,-105)