Roles were just introduced in Wild of Eldraine and I adore them. Magically enforced narrative roles in the tales that happen as part of life on Eldraine? So good. Naturally, when this prompt came up I went right to it.
Now all Roles so far printed are tokens. But if you were the lead character, you couldn't have something as menial as a token saying you are! So, actual card! The reminder text is there as the rules for Roles are intrinsic to the Role type. Anyway, the protagonist becomes Legendary, because of course, and grows overtime. They can take their knocks as the story beats them about a bit, but they'll always rise up to continue! They might not win, but they will be there 'till the end!
The painting of someone portraying Richard III I thought was quite right for this kind of card.