Outside of the numbers thing, BETA and UNLIMITED cards to me are the last of that original batch of cards that Wizards produced before they got super popular
In general, if you have four or more singleton targets in your deck, I would start examining the reason for each
Featuring a Floodborn version of the iconic Alice in Wonderland character which looks awesome Cheshire Cat, From the Shadows has the Shift keyword, enabling players to pay less for the card if they have a Cheshire Cat already out, and Evasive, preventing enemy characters from challenging it unless they have Evasive themselves
A lot of the cards foil versions include secret art or a hidden message
With Misty supporting energy gains, Articuno EX can reach the three-energy requirement faster, setting it up for powerful attacks
Then as a cast trigger, stuff you cast with a cost of five or more draws you a card