NPCs composing that spawngroup :

a_magician (50%)

Trazdon (50%)

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

najena bonecracker guards, range=94 (271,181,-25)

a_necromancer (100%)

najena_a_guard_officer73, range=67 (291,215,5)

a_guard_officer (100%)

najena_a_magician10, range=46 (358,173,-18)

a_magician (70%)
a_magician (30%)

najena Trazdon elementals, range=43 (318,202,-27)