23 - Rocco, Street Chef A very popular commander, Rocco, Street Chef is the perfect card to embody the meaning of Thanksgiving, as it allows your fellow players to cast cards from the top of their libraries
Whether or not this justifies the $500 asking price of these boxes is another question entirely
Tapping a two-mana Elf for five mana is just nutty, and its utility in five-color Commander decks is likely the reason why this rare that debuted in Morningtide retains such an impressive price point ($18.25 median value across all printings)
Any effects (such as proliferate) that interact with counters a player gets, has, or loses can interact with rad counters
That said, Wizards has been aggressively anti-free spell when it comes to Historic
Kaust, Eyes of the Glade Kaust, Eyes of the Glade is kind of a Secret Plans on a creature, but less good