NPCs composing that spawngroup :

Bubonian_Death_Caster (1%)

Bubonian_Great_Mystic (1%)

Bubonian_Mystic (50%)

Bubonian_Warlord (1%)

Bubonian_War_Rat (46%)

Crazed_Bubonian_Berzerker (1%)

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

codecay2000011, range=72 (496,-98,-69)

codecay2000012, range=73 (546,-19,-75)

codecay2000015, range=95 (553,-82,-72)

codecay2000020, range=32 (469,3,-80)

codecay2000122, range=20 (460,-13,-80)

codecay2000147, range=72 (532,12,-75)

codecay_275147, range=16 (466,-14,-81)

#mage_trap (100%)

codecay_282435, range=34 (455,1,-74)