Here are a couple I think might suit:
CATTEGIRN: Welsh meaning "battle lord"
VORTIGERN: Old Welsh meaning "High Lord"
GUNDISALV: meaning "battle genius"
XIUHCOATL: Nahuatl unisex name meaning "fire serpent" or "weapon of destruction."
ASKOOK: Native American Algonquin name meaning "snake."
ASTAROT: In demonology, this is the name of a Prince of Hell, meaning "leading one" or "the chief." He is depicted in the Dictionnaire Infernal as a nude man with dragon-like wings, hands and feet, a second pair of feathered wings, and a crown. He is holding a serpent in one hand while riding a wolf-like beast.
EHECATL: Nahuatl name meaning "wind serpent."
NIDHOGG: Anglicized form of Old Norse NÃÂðhöggr, meaning "dreaded striker." In mythology, this is the name of a dragon or serpent who gnaws at the roots of the world tree Yggdrasill.
ORMARR: Old Norse name composed of the elements orm "serpent" and herr "army," hence "serpent army."