Currently I have 11 Planeswalkers, and when I go to my PW menu to edit their decks or the like, I have to scroll through all of them (and the scrolling isn’t even that good - I end up accidentally clicking a button rather than swiping, or swiping up [to deck edit] rather than swiping right [to the next walker]), and I can’t imagine if I had ALL the planeswalkers to sort through. It’s inefficient, and needs an update.
My suggestion would be to have, at the very front of the Planeswalker page, buttons for the five colors (similar in view to how Nodes of Power looks); a player would be able to click the button for the color they’re looking for, and then only the planeswalkers that are that color will pop up (I would prefer still in button form, but that might be difficult so maybe scrolling will need to stay for that). That way I can just click “White” to get to Ajani, rather than having to scroll all the way from Sarkhan at the back.