Hi,

Another feature request, looking interesting but I don't know if you will accept this.

It's to be able to add a tag or anything like this to tell I have these cards in Magic Online. You can managing MO decks, import and export, event detag those cards if you decide to get the physical copies.

Right now we don't have such functionality, but custom tags is something we have planned, so you could create a tag called 'MTGO' and tag cards in your inventory with it. This will not be present in the future update, but it's something we'd like to do during this summer.