NPCs composing that spawngroup :

a_goblin_wizard (100%)

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

permafrost_1, range=76 (312,218,-38)

permafrost_8, range=15 (315,291,-38)

an_ice_goblin (100%)

permafrost_14, range=43 (335,319,3)

an_ice_goblin (50%)
a_goblin_priest (50%)

permafrost_30, range=74 (295,220,3)

an_ice_goblin (50%)
a_goblin_diviner (50%)

permafrost_35, range=23 (320,306,17)

a_goblin_mendicant (50%)
a_goblin_priest (50%)

permafrost_39, range=86 (331,375,-41)

permafrost_57, range=96 (225,354,17)

permafrost_60, range=82 (223,264,10)

a_goblin_preacher (50%)
a_goblin_prelate (50%)

permafrost_61, range=78 (240,244,10)

an_ice_goblin (50%)
a_goblin_priest (50%)

permafrost_65, range=83 (350,227,-40)

a_dire_wolf (50%)
a_young_dire_wolf (50%)