NPCs composing that spawngroup :

A_Dark_Sending_ (50%)

A_Singultus_Proeliator (50%)

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

griegsend1304108, range=84 (44,2717,-55)

griegsend1304109, range=51 (98,2751,-55)

a_deadly_dreamweaver (50%)
a_defiled_dreamweaver (50%)

griegsend1304114, range=46 (108,2827,-55)

griegsend1304115, range=40 (34,2797,-55)

a_tormented_pugilist (50%)
a_tormented_pugilist (50%)

Grieg_Veneficus__1432762, range=69 (129,2839,-42)

Grieg_Veneficus_ (2%)

A_Dark_Sending__1432769, range=23 (74,2819,-51)

A_Dark_Sending_ (2%)

A_Dark_sending_1432862, range=74 (44,2864,-51)

A_Dark_sending_1432865, range=20 (74,2776,-51)

A_Dark_Sending (2%)
A_Dark_Sending (2%)

A_Dark_sending_1432866, range=43 (74,2839,-52)

A_Dark_Sending_ (50%)
A_Singultus_Proeliator (50%)

A_Dark_sending_1432870, range=71 (97,2864,-52)

A_Dark_Sending_ (2%)

A_Dark_Vision_1433026, range=91 (13,2864,-52)

A_Dark_Sending_ (2%)

A_Dark_Vision_1433051, range=27 (58,2818,-51)

An_Occisor_Acerbus (2%)

A_Dark_Vision_1433057, range=68 (74,2864,-51)

A_Dark_Sending_ (2%)
A_Dark_Vision_ (2%)

A_Dark_Vision_1433079, range=86 (128,2864,-52)

A_Dark_Vision (2%)

A_Shadow_dream_1433131, range=62 (15,2776,-52)

#Singultus_Primorus (2%)

A_Dark_Sending__1433160, range=35 (106,2780,-53)

A_Dark_Sending__1433161, range=98 (113,2886,-54)

Grieg_VeneficusTrigg_1433164, range=70 (144,2804,-54)