Board Thread:Versus Battles/@comment-24900075-20180325064359/@comment-24900075-20180427011429

He knows stuff about canon DB; not things specifically about Xeno Goku. Both would have knowledge of Hakai, both would know of the Mafuuba, both knows of Ultra Instinct, etc.

Also they both have Information Analysis that allows them to gain an understanding of eachother's techniques and moves anyways so pre-knowledge is kinda moot xD