1.You should make your account more accessible. Example: by allowing companion to Crossfade with MGT arena that way people can just put your codes in through the companion instead of having to go to the website it'd be easier for all of your customers for sure plus it make people want to download companion more.
Deck making and editing.
It's really cool to be able to look up all cards in the database and be cooler if you could make a deck and then I'd have more use with the database then instead of having to look up the card every time
Be able to track a card that'd be really cool too. Because sometimes I don't really like to fully make decks but I do like to keep track of cards until I can make assemblance of a deck and track it with other cards