Does anyone make flash cards for learning formats? Premade online?

I haven't drafted since Kaladesh, and I want to get up to speed on AKH and do some drafts before HOU. I'm thinking of making flash cards with things like mana cost on one side and list of possible tricks on another.

Does something like this exist online? Wouldn't be too hard to make but I don't want to reinvent the wheel if I don't have to.