NPCs composing that spawngroup :

an_ice_goblin (50%)

a_goblin_evoker (50%)

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

permafrost_1, range=78 (228,24,3)

an_ice_goblin (50%)
an_ice_goblin (50%)

permafrost_37, range=60 (283,15,-25)

an_ice_goblin (50%)
an_ice_goblin (50%)

permafrost_38, range=96 (218,141,3)

a_goblin_evoker (50%)
a_goblin_priest (50%)

permafrost_39, range=80 (361,41,-27)

permafrost_40, range=81 (369,85,-41)

a_dire_pup (50%)
a_dire_wolf (50%)

permafrost_41, range=82 (357,120,-40)

a_dire_pup (50%)
a_large_dire_wolf (50%)

permafrost_42, range=46 (329,96,-20)

a_young_dire_wolf (50%)
a_young_dire_wolf (50%)

permafrost_48, range=90 (309,163,3)

an_ice_goblin (100%)

permafrost_49, range=89 (228,141,3)

permafrost_53, range=59 (260,22,3)

an_ice_goblin (50%)
a_goblin_diviner (50%)

permafrost_62, range=30 (287,105,3)

an_ice_goblin (50%)
a_goblin_diviner (50%)

permafrost_65, range=24 (270,59,-27)

a_dire_wolf (50%)
a_young_dire_wolf (50%)

permafrost_75, range=93 (378,50,3)

an_ice_goblin (50%)
an_ice_goblin (50%)

permafrost_82, range=83 (262,-4,-25)

an_ice_goblin (50%)
an_ice_goblin (50%)

permafrost_111, range=95 (383,78,3)

an_ice_goblin (50%)
a_goblin_priest (50%)

permafrost_124, range=85 (203,77,3)

an_ice_goblin (50%)
an_ice_goblin (50%)

permafrosta_goblin_priest015171810250, range=42 (246,84,2)

a_goblin_priest (100%)