The rule box Pokmon for the current generation are called Pokmon V, mimicking the Dynamax mechanic from the Sword and Shield games
Chaos did indeed ensue, as discussion boards lit up with MTG Modern players having fun with the consequences of this unassuming 'may' on the card
Astute readers will notice that I didnt look at the scene boxes from Final Fantasy and I didnt look at those because they arent preconstructed decks you can play with right out of the box
They get far better with ramp spells like Nature's Lore, Explosive Vegetation, and Harrow that many green decks play anyway
Maybe it betrays existence
Once you have 5, it flips into Vault of Catlacan, a land that taps for any color or adds a blue mana for every artifact you control like the infamously banned land, Tolarian Academy