If you want to get really spicy, add regional variants so that they can adapt to the environment they're in
Bring any original packaging, sleeves, and certificates of authenticity, and if you have professionally graded cards (PSA, BGS, CGC), bring the slabs too
Plus, who couldnt love the artwork of an adorable bunny being painted
For players who like to bring multiple decks to events or game nights with friends, storage flexibility is key
One of the answers to this problem was to design a creature token with a special function
I can't recall a cycle of cards in a new expansion that did a bunch of great things like these and then add in the keyword to them as well as these, which is pretty common now