NPCs composing that spawngroup :

A_Dark_Vision (2%)

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

griegsend1304071, range=96 (70,1666,-60)

griegsend1304076, range=78 (52,1584,-64)

griegsend1304215, range=33 (-41,1646,-64)

griegsend1304216, range=83 (-78,1679,-64)

a_shrouded_willsapper (50%)
a_shrouded_willsapper (50%)

griegsend1304240, range=86 (-32,1538,-64)

a_deadly_dreamweaver (50%)
a_tormented_mercenary (50%)

griegsend1304241, range=78 (51,1583,-64)

a_defiled_dreamweaver (100%)

A_Dark_Vision_1433019, range=23 (-11,1646,-61)

A_Dark_Vision (2%)

A_Dark_Vision_1433034, range=92 (38,1548,-62)

A_Dark_Vision (2%)

A_Dark_Vision_1433044, range=61 (45,1626,-61)

A_Dark_Vision (2%)

A_Dark_Vision_1433045, range=65 (45,1648,-61)

A_Dark_Vision_ (2%)

A_Dark_Vision_1433046, range=83 (45,1680,-61)

A_Dark_Vision (2%)

A_Dark_Vision_1433055, range=88 (72,1626,-61)

An_Occisor_Acerbus (2%)