NPCs composing that spawngroup :

An_Enthralled_Razorfiend (100%)

NPCs spawning around that spawngroup :
(Max range : 200)

thedeep1312274, range=91 (-510,364,-57)

a_thought_leech_evoker (50%)
a_young_thought_leech (50%)

thedeep1312251, range=198 (-650,172,-93)

an_enthralled_outcast (50%)
An_Enthralled_Razorfiend (50%)

thedeep1312250, range=184 (-556,108,-89)

an_enthralled_outcast (100%)

thedeep1312246, range=196 (-306,187,-61)

a_shrieker (34%)
a_shrieker (33%)
a_shrieker (33%)
a_shrieker (34%)
a_shrieker (33%)
a_shrieker (33%)
a_shrieker (34%)
a_shrieker (33%)
a_shrieker (33%)
a_shrieker (34%)
a_shrieker (33%)
a_shrieker (33%)
a_shrieker (34%)
a_shrieker (33%)
a_shrieker (33%)

thedeep1312236, range=157 (-330,320,-57)

a_thought_leech_evoker (50%)
a_young_thought_leech (50%)

thedeep1312235, range=154 (-329,304,-59)

An_Enthralled_Underbulk (50%)
a_thought_leech_spiriter (50%)

thedeep1312220, range=154 (-569,150,-88)

An_Enthralled_Razorfiend (50%)
An_Enthralled_Razorfiend (50%)

thedeep1312176, range=190 (-319,177,-61)

a_shrieker (100%)

thedeep1312175, range=187 (-305,213,-62)

thedeep1312170, range=175 (-578,131,-90)

an_enthralled_outcast (50%)
an_enthralled_outcast (50%)

thedeep1312166, range=115 (-508,389,-57)

a_thought_leech_evoker (50%)
a_thought_leech_evoker (50%)

thedeep1312165, range=161 (-510,436,-61)

a_hideous_thought_leech (100%)

thedeep1312164, range=99 (-486,376,-58)

thedeep1312132, range=167 (-587,147,-90)

thedeep1312017, range=158 (-558,139,-90)

a_thought_leech_evoc_1433243, range=115 (-482,392,-57)

a_thought_leech_evoker (100%)

a_thought_leech_evoc_1433247, range=165 (-317,302,-56)

a_thought_leech_evoker (100%)