NPCs composing that spawngroup :

an_Akhevan_Shadow_Warrior (17%)

an_Akhevan_Vicar (16%)

a_Cleric_of_Akheva (16%)

a_Myrmidon_of_Akheva (17%)

a_Shadow_Goliath (17%)

a_Vicar_of_Akheva (17%)

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

vexthal1264117, range=55 (-449,1400,5)

vexthal1264128, range=40 (-492,1345,5)

vexthal1264129, range=42 (-489,1324,5)

a_Shaded_Templar (50%)
a_Shadow_Cleric (50%)

vexthal1264130, range=21 (-450,1366,5)

a_Shadowed_Nemesis (50%)
a_Shadow_Rogue (50%)

vexthal1264131, range=42 (-489,1366,5)

a_Shadowed_Evoker (50%)
a_Shadowed_Evoker (50%)

vexthal1264142, range=93 (-445,1252,5)

an_Akhevan_Shadow_Warrior (50%)
a_Shadow_Goliath (50%)

vexthal1264253, range=44 (-464,1302,116)