EzioAuditore_1
How about making his own sacred gear. He already have unlimited material via land of shadow since it copies everything he killed with unlimited revive. He also have knowledge needed for it since he already have Valerie with him adding with her gear soul granting abilities. Arming his own subordinates with it will boost his own faction. Also Boosted gear on balance break has been copied and mass produced on the canon story line so it should be doable.
Commonwealth "Aquila". And the coat of arms of the organization will be Aquila from Warhammer 40k. A double-headed eagle (symbol of freedom and independence), one head of which looks blindly into the past (discarding prejudices, discrimination and stereotypes), and the other looks at the future. After all, this is what Cao Cao and his followers strive for: freedom, peace, prosperity and a better tomorrow. As an alternative to the Eagle, you can use the coat of arms of the Brotherhood of Assassins from "Assasins creed" P.S. I spent about an hour thinking about this