Adui
Dao of Replication/Duplication: Allows the user to Replicate or Duplicate any Attack or Skill that they know or observe, meaning they can replicate their enemy's attacks. This dao could also be used to create additional clones and add additional capabilities to the clones created through this dao, similiar to how the void clone has boosted capabilities in space and the ruination clone has boosted capabilities in various areas especially anything based around ruination. One limitation you could include is that you can only clones equal to the number of laws and daos that are mastered and each clone does additional damage in one law or dao.