NPCs composing that spawngroup :

a_goblin_death_caller (50%)

a_goblin_spirit_lord (50%)

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

nurga_130, range=90 (-1229,-1199,-173)

a_goblin_sneak (100%)

nurga_134, range=59 (-1145,-1231,-173)

nurga_136, range=91 (-1117,-1260,-173)

a_goblin_sneak (50%)
a_goblin_taskmaster (50%)

nurga_137, range=57 (-1121,-1225,-173)

a_goblin_sneak (50%)
a_goblin_taskmaster (50%)

nurga_138, range=86 (-1165,-1256,-173)

a_dangerous_mine_rat (50%)
a_goblin_death_caller (50%)

nurga_139, range=68 (-1211,-1172,-173)

a_dangerous_mine_rat (50%)
a_goblin_sneak (50%)

nurga_140, range=34 (-1159,-1141,-173)

nurga_141, range=68 (-1111,-1233,-173)

a_goblin_blood_knight (50%)
a_goblin_sneak (50%)

nurga_142, range=99 (-1136,-1271,-173)

nurga_143, range=95 (-1213,-1237,-173)

a_dangerous_mine_rat (50%)
a_goblin_flame_dancer (50%)