NPCs composing that spawngroup :

briarweb_spider (25%)

briarweb_spider (25%)

briarweb_spider (25%)

ravener (25%)

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

kaesora_5, range=161 (145,62,-61)

kaesora_6, range=178 (147,81,-61)

kaesora_7, range=139 (135,40,-61)

bristleweb_spider (50%)
strathbone_healer (50%)

kaesora_9, range=188 (175,71,-61)

kaesora_12, range=157 (120,74,-61)

briarweb_spider (50%)
ravener (50%)

kaesora_27, range=82 (54,18,3)

strathbone_healer (100%)

kaesora_28, range=186 (88,117,35)

minion_of_Xalgoz (50%)
spectral_guardian (50%)

kaesora_29, range=59 (97,-85,3)

kaesora_30, range=32 (55,-33,3)

kaesora_31, range=86 (126,-83,3)

kaesora_33, range=125 (111,-168,-27)

kaesora_34, range=157 (120,-200,-29)

kaesora_35, range=153 (153,-169,-27)

kaesora_37, range=197 (-55,-236,-88)

skeletal_warder (100%)

kaesora_60, range=114 (153,-89,3)

kaesora_64, range=156 (198,-57,-125)

skeletal_minion (100%)

kaesora_76, range=181 (-109,-163,-109)

kaesora_77, range=166 (-98,-153,-109)