He couldn't use any special physical skills or moves, but his movements were smooth and perfect because even though he is alone in this match, the clones watching by the side can see the entire movements of both parties clearly and are feeding their vision and thoughts to him.
The clones are bystanders, so they have the privilege of watching and making analysis without the threat of death. Most audiences feel that they can do better because of this privilege. Since Legion-1 is able to gain the privilege from the clones, he can actually do better.
He followed up the attack with a kick. His leg smashed into the wolf, but it didn't do any harm. Still, the shift in weight allowed him to swing the axe around for another hit.
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