It's not particularly vital, though, with how many other ways red and white have to make Ryu very big
On this website, the cards will be automatically substituted in decklists when you switch between Paper, MTGO and Arena tabs for pricing, at least until these versions get printed in paper, if ever
What If You Give the Backup Creature Additional Abilities
Apart from simply collecting them, you can actually play with them because its a full-fledged card game, by building a 60-card deck and battling it out with another player
There are quite a few cases where there is another version of Joo Jo-yeon's character, and in these cases, it is a hidden tradition in the series that they come out with unexpected decks that have little to do with the original's appearance and are quite strong