Wizards has expanded the concept to include broader special treatments like alternate art, textured foils, borderless frames, anime-style illustrations, and etched finishes
If you find you don't have use for Stitch, New Dog, you can add him to your inkwell from your hand to become one ink to put toward paying for another card, potentially with better (or more useful at the moment) stats
Surging Sparks is great for Pikachu lovers, and Crown Zenith is great for Giratina fans
With Blue's counter package, you push the game into the turns where Yellow's effects shift the board
Admittedly, it can pay off spectacularly if luck is with you: you flip 3 coins for the attack, and deal 150 damage per successful flip
Another aspect of the supporting cards is their optional nature