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'''Arno Trevan''' is a [[Grey Knights Brother-Captain|Brother-Captain]] of the [[Grey Knights]]. {{Fn|1}} A skilled strategist, he led the Second [[2nd Brotherhood (Grey Knights Brotherhood)|Second Brotherhood]] against [[Waaagh!]] [[Snappaklaw]] in the [[Assault on Beroghast]]. Trevan was able to cut off the [[Ork]] supply lines in the battle, then engage [[Snappaklaw ]] himself. In personal combat alongside his elite retinue, Trevan slew the Greenskin [[Warboss]].{{Fn|1}}