Fan-freakin-tastic. With these new updates to the MyTeam screen, that really is the ONLY pain point I see right now.
I was thinking colored buttons next to the count/max tab on the right maybe, just more (clickable) tabs... red/green/blue/yellow/purple to show only those class talismans. Could also work for characters... to show only that class of character. I'm sure you all will come up with something great though.
A suggestion, not really a "problem" would be to also indicate talismans on a character that are ready for evolution but you don't have the resources to evolve them yet.... like a level 40, 4 star talisman but you only have 3-3star evo runes and need 9. Like perhaps the evolve icon in greyscale or with "Don't" symbol on it.. something like that. Honestly though.. tapping talismans to see where they are at is, like, light years faster now and there's no more of that 4 minute wait when you change things and leave the MyTeam screen.
Another minor suggestion... selling talismans... (which is secondary really). A way to sell a talisman from the MyTeam screen would be great.. a little gold coin on the description popup... something rather than using the "sell" screen, which can be difficult to determine what is needed and what is waste.