Before Start: 相手's already been thoroughly analyzed
Prototype: 自分's the origin/ancestor of all Knights
Improvisation: 自分 forms a new Sword Art to counter 相手
Mirror Sword Art: Forms 相手's entire essence into a sword
Kaleidoscope: 自分 mixes all of his current Sword Arts
He can turn any phenomenon & concept into new swordsmanship via the following:
Retrieval: Archiving a thing in his memory
Mapping: Aligning structural elements
Evaluation: Testing the validity of the mapping
Abstraction: Generating a new concept
Application: Applying the new concept
With this system he can freely mix & match anything into a new Sword Art instantly, even 相手's entire being/ousia