NPCs composing that spawngroup :

a_blizzard_hunter (17%)

a_blizzard_spider (16%)

a_crystalline_devourer (17%)

a_crystalline_hunter (17%)

a_crystalline_watcher (16%)

a_shard_spider (17%)

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

velketor_an_Icepaw_kobold_warrior63, range=97 (219,-209,23)

velketor_an_Icepaw_kobold62, range=94 (238,-218,-144)

velketor_223635, range=85 (308,-212,-180)

velketor_223662, range=81 (282,-213,23)

velketor_223667, range=93 (318,-47,-188)

a_blizzard_spider (50%)
a_shard_spider (50%)

velketor_223674, range=60 (220,-116,-188)

a_crystalline_devourer (40%)
a_crystalline_watcher (60%)

velketor_223685, range=87 (194,-109,-112)

velketor_223688, range=74 (352,-142,-119)

velketor_223689, range=40 (297,-96,-188)

velketor_223693, range=44 (237,-115,-188)

velketor_223697, range=91 (301,-221,23)

velketor_223705, range=86 (238,-209,23)

velketor_223710, range=89 (317,-51,-70)