Amir walked among the ruins of what used to be the Southern District while being surrounded by an entourage of Master ranked Knights, with a hidden Grandmaster in between.
Though it's not like Amir needed protection, he was strong, far stronger than anyone could ever fathom. Although still in the Ranks of Master, his strength matched that of a capable Grandmaster due to his utilization of Aura alone. When his bloodline came into the equation, his strength turned him into the cream of the crop among the Grandmasters. So one can imagine what he was capable of once he ascended to that rank.