NPCs composing that spawngroup :

a_goblin_warder (100%)

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

nurga_68, range=57 (-2231,-846,-221)

a_goblin_blightcaller (50%)
a_goblin_slave_keeper (50%)

nurga_70, range=68 (-2255,-851,-221)

a_goblin_blightcaller (50%)
a_goblin_gold_hoarder (50%)

nurga_71, range=70 (-2275,-839,-221)

a_goblin_blightcaller (100%)

nurga_72, range=9 (-2235,-791,-221)

a_goblin_gold_hoarder (50%)
a_goblin_soul_stealer (50%)

nurga_73, range=34 (-2260,-793,-221)

nurga_197, range=70 (-2162,-819,-221)

va_nurga_508003, range=72 (-2253,-856,-220)

va_nurga_508077, range=0 (-2226,-789,-220)