NPCs composing that spawngroup :

Look (100%)

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

griegsend1304240, range=87 (-32,1538,-64)

a_deadly_dreamweaver (50%)
a_tormented_mercenary (50%)

griegsend_282475, range=41 (-58,1413,-69)

Screaming (100%)

griegsend_A_Dark_Vision11_takp_import_v0, range=55 (-55,1399,-70)

griegsend_225095_takp_import_v0, range=94 (-57,1360,-74)

A_Dark_Sending_ (100%)

griegsend the and fake sending_takp_import_v0, range=55 (-55,1399,-70)

A_Dark_Sending (50%)
The (25%)
The (25%)

griegsend_A_Shadow_dream151_takp_import_v0, range=0 (-55,1454,-64)

A_Shadow_dream (100%)

griegsend_An_Occisor_Acerbus259_takp_import_v0, range=7 (-54,1447,-64)

#Occisor_Primorus (5%)
An_Occisor_Acerbus (95%)