NPCs composing that spawngroup :

a_goblin_arcane_master (50%)

a_goblin_spirit_mystic (50%)

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

nurga_21, range=81 (-1394,-568,-185)

a_goblin_flame_dancer (50%)
a_goblin_flame_dancer (50%)

nurga_22, range=16 (-1474,-616,-189)

nurga_23, range=39 (-1496,-629,-189)

nurga_27, range=78 (-1512,-666,-189)

a_goblin_life_stealer (50%)
a_goblin_stabber (50%)

va_nurga_508003, range=2 (-1468,-603,-188)

va_nurga_508009, range=36 (-1493,-628,-188)