What a cool resource, thanks for the link.

Hmmm... right off the top of my head:

• A list of monsters/summoners my opponents tend to use along with my win rate against those monsters/summoners.
• A list of cards that 'frequently grouped together' could you tell if cards commonly played together are working well, or poorly.

Just realized that you're the developer behind the report card! Thanks for taking the time to build this, it's very helpful.