NPCs composing that spawngroup :

#a_blood_thirsty_mine_rat (20%)

a_dangerous_mine_rat (40%)

a_dangerous_mine_rat (40%)

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

nurga_21, range=93 (-1394,-568,-185)

a_goblin_flame_dancer (50%)
a_goblin_flame_dancer (50%)

nurga_23, range=25 (-1496,-629,-189)

nurga_24, range=16 (-1468,-601,-189)

a_goblin_arcane_master (50%)
a_goblin_spirit_mystic (50%)

nurga_27, range=62 (-1512,-666,-189)

a_goblin_life_stealer (50%)
a_goblin_stabber (50%)

nurga_31, range=98 (-1572,-604,-189)

a_goblin_arcane_master (50%)
a_vicious_mine_rat (50%)

va_nurga_508003, range=14 (-1468,-603,-188)

va_nurga_508009, range=22 (-1493,-628,-188)