NPCs composing that spawngroup :

An_Enthralled_Razorfiend (100%)

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

thedeep1312220, range=42 (793,1590,-57)

An_Enthralled_Razorfiend (50%)
An_Enthralled_Razorfiend (50%)

thedeep1312124, range=47 (877,1563,-58)

An_Enthralled_Razorfiend (100%)

thedeep1312123, range=66 (900,1601,-54)

an_enthralled_outcast (100%)

thedeep1312122, range=59 (872,1632,-56)

An_Enthralled_Underbulk (20%)
An_Enthralled_Underbulk (80%)

thedeep1312017, range=24 (813,1596,-59)