I dont know what makes a Pokmon legendary or not legendary, so digging further into it I came across what I assume is an unofficial chart that tries to categorize the rare ones: This chart has three categories: Legendary Pokmon, Legendary Pokmon (Forbidden), and something thats tough to translate but is something like Mystical Pokmon or Mythical Pokmon
From the image above, the one on the left is a shadowless card as compared to the one on the right where you see a shadow behind the frame surronding the Pokmon
Beast Ring, Bonnie, and Beast Energy added versatility, and Greninja-GX was a fan favorite
Looking back at the file, I saw this note: MR (3/24/06): DESIGN NOTE #1: The designer goob likes this card
Lots of land drops look good on paper, but I am not experienced with how many is too many
TL;DR: Best Destined Rivals Cards Destined Rivals is one of the best Scarlet and Violet era sets, it's banger after banger as far as chase cards go