Currently, when you have enough traitstones for at least one trait, a green plus appears on the card. I’d like to see which is the highest trait that can be obtained, such as with +1, +2, or +3. Additionally, when sorting by “Upgradable”, I’d like to see the +3’s first, then +2, then +1.
This would be very useful for deciding which 2-star kingdom to work on upgrading next. With how kingdom power levels work now, I’m not about to waste traitstones on only the first or second trait. It’s all three or not at all.