NPCs composing that spawngroup :

#Frost_Caller_Ollikaz (20%)

a_goblin_frost_caller (80%)

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

nurga_25, range=178 (-1454,-1070,-173)

a_goblin_life_stealer (50%)
a_goblin_stabber (50%)

nurga_32, range=17 (-1534,-901,-172)

a_goblin_blight_caster (50%)
a_goblin_spirit_mystic (50%)

nurga_33, range=115 (-1449,-996,-173)

a_goblin_life_stealer (50%)
a_goblin_slave_driver (50%)

nurga_34, range=116 (-1481,-1014,-173)

a_goblin_arcane_master (100%)

nurga_46, range=80 (-1505,-983,-221)

a_goblin_gold_hoarder (100%)

nurga_47, range=61 (-1527,-964,-221)

a_goblin_blightcaller (50%)
a_goblin_frost_caller (50%)

nurga_48, range=95 (-1548,-993,-221)

a_goblin_blightcaller (50%)
a_goblin_frost_caller (50%)

nurga_50, range=33 (-1550,-898,-221)

nurga_51, range=73 (-1590,-914,-221)

a_goblin_slave_keeper (50%)
a_goblin_soul_stealer (50%)

nurga_52, range=41 (-1551,-927,-221)

a_goblin_blightcaller (50%)
a_goblin_frost_caller (50%)

nurga_53, range=151 (-1668,-908,-221)

a_diseased_mine_rat (50%)
a_goblin_gold_hoarder (50%)

nurga_54, range=185 (-1661,-786,-221)

a_goblin_blightcaller (100%)

nurga_56, range=139 (-1656,-897,-221)

a_goblin_gold_hoarder (100%)

nurga_148, range=181 (-1357,-988,-173)

a_goblin_blood_knight (50%)
a_goblin_flame_dancer (50%)

nurga_149, range=193 (-1324,-916,-173)

a_goblin_flame_dancer (50%)
a_goblin_flame_dancer (50%)

a_Burynai_slave_189526, range=10 (-1509,-897,-221)

a_Burynai_slave (100%)

nurga_a_goblin_slavedriver1_takp_import_v0, range=77 (-1504,-979,-220)

nurga_a_goblin_stalagknight9_takp_import_v0, range=93 (-1550,-991,-220)

nurga_a_goblin_flashdrowser44_takp_import_v0, range=33 (-1550,-900,-220)

nurga_a_goblin_boneseer47_takp_import_v0, range=117 (-1448,-998,-172)

nurga_an_Iksar_slave79_takp_import_v0, range=10 (-1509,-897,-221)