Some cards in other sets refer to a card, spell, or permanent that "has an Adventure." This refers to a card, spell, or permanent that has an adventurer card's set of alternative characteristics, even if they're not being used and even if that card was never cast as an Adventure
The key line of text on this card is You may cast nonland cards exiled with Rona.
But then you look at the abilities
Food tokens already generate value by giving the player life, but this makes food tokens on par, if not better, than clue tokens
Theyre cheap enough to slot into early turns, but they only delay the problem rather than solving it
I have played MTG since I was a kid and obviously it would be amazing to keep this card