Every time you sacrifice one or more Foods, you get a 1/1 Squirrel token instead
Every deck is a form of self-expression, after all
Along with the extended-art cards that you can only get in the Collector Booster, there is a promo card for Strixhaven that is a traditional foil alternate-art and extended-art version of Dragonsguard Elite that is only available via the Buy-a-Box promotion (while supplies last)
Whenever a new set, or a balance patch, comes out, they will explain why they wanted to promote some new game mechanic, what flavor they were trying to evoke with some cards, why deck X needed a nerf, etc
If anything, people are expecting too much of the card because its a very weak four-cost planeswalker in a world full of them