NPCs composing that spawngroup :

a_goblin_life_stealer (50%)

a_goblin_slave_driver (50%)

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

nurga_145, range=60 (-1319,-1162,-173)

nurga_192, range=76 (-1421,-1187,-173)

a_goblin_arcane_master (50%)
a_goblin_spirit_mystic (50%)

nurga_194, range=33 (-1343,-1247,-173)

a_goblin_blight_caster (50%)
a_goblin_spirit_mystic (50%)

nurga_195, range=77 (-1387,-1281,-173)

a_goblin_blight_caster (50%)
a_goblin_spirit_mystic (50%)

va_nurga_508003, range=31 (-1341,-1244,-172)

va_nurga_508009, range=78 (-1387,-1283,-172)

va_nurga_508013, range=59 (-1321,-1162,-172)

va_nurga_508030, range=73 (-1417,-1187,-172)

va_nurga_508058, range=91 (-1258,-1225,-172)