NPCs composing that spawngroup :

a_goblin_blight_caster (50%)

a_goblin_spirit_mystic (50%)

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

nurga_116, range=182 (-1365,-1100,-173)

a_goblin_sneak (50%)
a_goblin_taskmaster (50%)

nurga_130, range=178 (-1229,-1199,-173)

a_goblin_sneak (100%)

nurga_131, range=182 (-1569,-1276,-173)

a_vicious_mine_rat (100%)

nurga_143, range=179 (-1213,-1237,-173)

a_dangerous_mine_rat (50%)
a_goblin_flame_dancer (50%)

nurga_145, range=137 (-1319,-1162,-173)

nurga_191, range=45 (-1432,-1275,-173)

a_goblin_arcane_master (50%)
a_vicious_mine_rat (50%)

nurga_192, range=99 (-1421,-1187,-173)

a_goblin_arcane_master (50%)
a_goblin_spirit_mystic (50%)

nurga_193, range=77 (-1349,-1214,-173)

a_goblin_life_stealer (50%)
a_goblin_slave_driver (50%)

nurga_194, range=55 (-1343,-1247,-173)

a_goblin_blight_caster (50%)
a_goblin_spirit_mystic (50%)

nurga_a_goblin_warder0_takp_import_v0, range=98 (-1417,-1187,-172)

nurga_a_goblin_slavedriver1_takp_import_v0, range=59 (-1341,-1244,-172)

nurga_a_goblin_backbiter5_takp_import_v0, range=136 (-1321,-1162,-172)

nurga_a_goblin_stalagknight9_takp_import_v0, range=2 (-1387,-1283,-172)

nurga_a_goblin_blightcaller58_takp_import_v0, range=140 (-1258,-1225,-172)