NPCs composing that spawngroup :

a_thought_leech_evoker (100%)

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

thedeep1312246, range=162 (-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=193 (-330,320,-57)

a_thought_leech_evoker (50%)
a_young_thought_leech (50%)

thedeep1312235, range=186 (-329,304,-59)

An_Enthralled_Underbulk (50%)
a_thought_leech_spiriter (50%)

thedeep1312176, range=178 (-319,177,-61)

a_shrieker (100%)

thedeep1312175, range=154 (-305,213,-62)

thedeep1312146, range=111 (-52,291,-61)

a_thought_leech_evoker (50%)
a_thought_leech_evoker (50%)

thedeep1312145, range=102 (-74,309,-61)

thedeep1312144, range=30 (-170,268,-57)

a_thought_leech_evoker (50%)
a_thought_leech_evoker (50%)

thedeep1312143, range=26 (-146,269,-58)

thedeep1312142, range=39 (-187,223,-59)

a_thought_leech_evoker (50%)
a_thought_leech_evoker (50%)

thedeep1312141, range=93 (-179,153,-57)

a_young_thought_leech (100%)

thedeep1312140, range=85 (-144,158,-58)

a_thought_leech_evoker (50%)
a_thought_leech_evoker (50%)

thedeep1312139, range=162 (-106,87,-57)

a_thought_leech_evoker (50%)
a_thought_leech_spiriter (50%)

thedeep1312138, range=143 (-85,117,-61)

thedeep1312046, range=199 (25,333,-60)

an_enthralled_outcast (100%)

a_thought_leech_evoc_1433247, range=174 (-317,302,-56)

a_thought_leech_evoker (100%)

a_thought_leech_evoc_1433249, range=157 (-92,98,-60)

a_thought_leech_evoker (75%)
Chasm_Overseer (25%)

a_thought_leech_evoc_1433250, range=121 (-59,320,-60)

a_thought_leech_evoker (100%)