NPCs composing that spawngroup :

a_goblin_gold_hoarder (50%)

a_goblin_soul_stealer (50%)

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

nurga_35, range=82 (-1958,-931,-173)

a_goblin_back_biter (50%)
a_goblin_spirit_weaver (50%)

nurga_47, range=36 (-1903,-891,-221)

a_goblin_blightcaller (50%)
a_goblin_frost_caller (50%)

nurga_48, range=72 (-1945,-892,-221)

a_goblin_blightcaller (50%)
a_goblin_frost_caller (50%)

nurga_63, range=46 (-1921,-930,-221)

a_diseased_mine_rat (100%)

va_nurga_508003, range=3 (-1874,-917,-220)