NPCs composing that spawngroup :

an_elemental_deceiver (25%)

a_spirit_of_the_ruins (25%)

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

hole_25, range=98 (92,77,-346)

an_elemental_capturer (50%)
a_destroyed_construct (50%)

hole_32, range=98 (-78,42,-346)

a_destroyed_construct (100%)

hole_33, range=65 (63,104,-347)

hole_65, range=41 (31,80,-346)

a_spirit_of_the_ruins (50%)
a_spirit_of_the_ruins (50%)

hole_66, range=69 (18,38,-346)

hole_67, range=54 (-56,102,-346)

a_spirit_of_the_ruins (50%)
a_spirit_of_the_ruins (50%)

hole_74, range=73 (-66,69,-370)

hole_75, range=0 (-2,105,-346)

hole_76, range=41 (-14,65,-346)

hole_86, range=95 (-88,147,-274)

a_ruined_gargoyle (50%)
a_ruined_gargoyle (50%)

hole_160, range=45 (35,78,-333)

hole_170, range=64 (48,145,-274)

#an_ancient_gargoyle (50%)
a_ruined_gargoyle (50%)

hole_217, range=11 (-11,98,-333)

hole_218, range=70 (24,40,-333)

hole_219, range=24 (22,104,-370)

a_spirit_of_the_ruins (50%)
a_spirit_of_the_ruins (50%)

hole_220, range=50 (27,64,-370)

an_elemental_capture_189541, range=57 (-54,81,-369)

an_elemental_capturer (50%)
muck_covered_elemental (50%)

an_elemental_harvest_189591, range=51 (31,66,-332)

an_elemental_harvester (100%)

Stonegrinder_Minion_189663, range=50 (-31,64,-341)

Stonegrinder_Minion (100%)

an_elemental_visier_189665, range=60 (18,48,-345)

an_elemental_visier (100%)

va_hole_25, range=98 (92,77,-346)

an_elemental_capturer (50%)

va_hole_66, range=69 (18,38,-346)

an_elemental_visier (25%)

va_hole_74, range=73 (-66,69,-370)

an_elemental_capturer (34%)

va_hole_218, range=70 (24,40,-333)

an_elemental_capturer (25%)
Rocksoul (25%)

va_an_elemental_capture_189541, range=57 (-54,81,-369)

an_elemental_capturer (50%)
muck_covered_elemental (50%)

va_an_elemental_harvest_189591, range=51 (31,66,-332)

an_elemental_harvester (100%)

va_Stonegrinder_Minion_189663, range=50 (-31,64,-341)

Stonegrinder_Minion (100%)

va_an_elemental_visier_189665, range=60 (18,48,-345)

an_elemental_visier (100%)