NPCs composing that spawngroup :

a_giant_polar_bear (50%)

a_giant_polar_bear (50%)

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

permafrost_32, range=162 (993,-70,3)

an_icy_terror (50%)
an_icy_terror (50%)

permafrost_51, range=143 (1024,-2,3)

an_icy_terror (50%)
an_icy_terror (50%)

permafrost_86, range=185 (907,243,-79)

a_giant_polar_bear (50%)
giant_wooly_spider (50%)

permafrost_88, range=135 (933,-72,-108)

a_giant_polar_bear (100%)

permafrost_89, range=88 (928,-23,-108)

a_giant_polar_bear (50%)
a_giant_polar_bear (50%)

permafrost_93, range=131 (763,69,-38)

an_ice_giant (50%)
an_ice_giant_magus (50%)

permafrost_145, range=172 (743,-26,-29)

an_ice_giant_youth (100%)

permafrost_146, range=16 (895,42,-31)

an_ice_giant_magus (100%)

permafrost_147, range=176 (759,172,-29)

an_ice_giant (100%)

permafrost_150, range=55 (839,49,-37)

giant_wooly_spider (100%)

permafrost_154, range=69 (953,21,-77)