NPCs composing that spawngroup :

orc_oracle (100%)

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

crushbone_orc_warlord58, range=97 (109,67,5)

orc_emissary (75%)
orc_warlord (25%)

crushbone legionnaires, range=75 (185,85,21)

crushbone_orc_emissary53, range=72 (136,84,21)

orc_emissary (100%)

crushbone throne legs, range=97 (185,62,22)

orc_legionnaire (100%)