NPCs composing that spawngroup :

a_drolvarg_sentry (33%)

skeletal_guardian (34%)

spectral_caller (33%)

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

karnor_spectral_caller32, range=84 (-129,-372,21)

spectral_caller (100%)

karnor Scryer water, range=63 (-143,-429,-18)

karnor_a_drolvarg_sentry6, range=95 (13,-457,-37)

a_drolvarg_sentry (50%)
a_drolvarg_sentry (50%)

karnor_skeletal_guardian14, range=20 (-73,-423,-49)

skeletal_guardian (50%)
skeletal_guardian (50%)

karnor_skeletal, range=49 (-107,-400,19)

karnor_223365, range=53 (-50,-398,31)

karnor_223366, range=38 (-46,-458,-35)

karnor_223370, range=86 (-25,-508,-33)

a_drolvarg_sentry (65%)
spectral_curate (35%)

karnor_223374, range=27 (-82,-415,21)

karnor Scryer, range=32 (-113,-434,19)

karnor skeletal berserker, range=92 (-21,-513,3)