NPCs composing that spawngroup :

an_ice_goblin (50%)

a_goblin_prelate (50%)

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

permafrost_34, range=22 (567,246,17)

an_ice_goblin (50%)
a_goblin_evoker (50%)

permafrost_46, range=90 (460,263,-41)

a_young_dire_wolf (100%)

permafrost_56, range=87 (519,178,17)

permafrost_58, range=79 (496,201,17)

an_ice_goblin (50%)
a_goblin_wizard (50%)

permafrost_99, range=61 (493,283,17)

a_goblin_evoker (50%)
a_goblin_priest (50%)

permafrost_100, range=76 (481,293,17)

an_ice_goblin (50%)
a_goblin_priest (50%)

permafrost_151, range=70 (620,261,-39)

giant_wooly_spider (100%)

permafrosta_goblin_priest016171868369, range=87 (512,181,17)

a_goblin_priest (100%)