Miller today is eloquent in describing the intricacies involved in designing a card game such as Magic. A game design veteran who eventually found his way to Magic parent Wizards of the Coast, Millers path wasnt direct, and included time spent as a prison guard
given that Enchanted cards are always the most sought after and valuable cards in a set (due not just to their gorgeous, full art look and beautiful textured finish, but their booster pack pull rate too), youll again see the constrast in styles just by taking a look at the most valuable cards
A set with 18 Enchanted cards spread across the same pull frequency means any given Enchanted is harder to target
That means a card with two inks can only go in a deck with those two inks and no more
Ruby/Emerald is a great deck for tacticians interested in countering opponents, with an arguably higher skill ceiling than Amber/Amethyst that can make it a real power deck in the right hands
The whole treatment is pretty similar to Magic: The Gatherings full art cards that appear in their more expensive Collector boosters and rarely in other sealed products