This is because of one simple difference: the lack of Fetchlands in Pioneer
This guy was the best value creature in all of magic for a very long time
On the note of budget, each wildcard costs the same and is earned the same way in their given rarities, thus, if you spend a wildcard on a super expensive common or mythic, you can play with cards that would cost a fortune IRL
While Urzas block was meant to be the enchantment block as cards like Replenish ($84.47) and Opalescence ($28.78) indicate the designers still managed to deliver powerhouse artifacts in this set, such as Metalworker, which at a $112.76 market value is the most valuable card from this set
Blue Yveltal is joined by Xerneas in this colorful explosion of an Alt Art promo with both Pokemon vividly featured in the scene
Plus, its rebound ability generates additional value as you can cast it for free from exile on your next upkeep