Most Flavorful A question for the Final Fantasy diehards reading this article: Did you ever want to own a Chocobo of your very own
In this particular Seto Kaiba Deck, a lot of his Monsters, Spells, and Traps come from his Battle City Tournament experience
The only exception to this is the whole sequence starting from the battle at Goug Lowtown, where until you defeat Cchulainn, you can't leave the southern part of the world map even after the battle at Golgollada Gallows
On the other hand, if your priority is preserving the cards as collectibles or for display, laminating or coating them might be a more suitable choice
In particular, Amethyst Legendaries in Archazia's Island are both unlikely to see competitive play
But it is only 2 damage, so it may be worth keeping it around for a bit