NPCs composing that spawngroup :

Velketor_the_Sorcerer (100%)

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

velketor_59, range=91 (152,47,7)

a_crystalline_gargoyle (50%)
a_crystal_gargoyle (50%)

velketor_61, range=71 (197,66,-112)

a_velium_stalker (50%)
The_Brood_Master (50%)

velketor_62, range=88 (105,85,-73)

velketor_63, range=61 (183,74,-112)

velketor_65, range=61 (197,76,-112)

a_velium_broodling (50%)
a_velium_stalker (50%)

velketor_92, range=23 (172,112,6)

velketor_94, range=45 (172,180,-58)

Crystal_Guardian (100%)
Crystal_Guardian (100%)

velketor_99114, range=89 (225,59,-187)