This card has another excellent, early example of a Yuka Morii clay model, and the Light classification makes it feel especially unique, likely contributing to its relatively high value
Set Boosters Zendikar Rising also introduces a new kind of booster pack: Set Boosters
The Arceus Immersive Card can be obtained in two ways: Randomly by opening a Triumphant Light pack By spending 1500 Pack Points to craft the card Dialga Diagla is one of two new Immersive Card in the Space-Time Smackdown themed set
Outside of these environments, Urza can still be quite good, as he generates 2 bodies for 4 mana, provides a mana sink with a powerful payoff when needed, and can even turn things like Equipment and Sapphire Medallions into tools to race ahead of your opponents while still employing their inherent value
I know you wont be disappointed
What if we want to allow for mulligans, card draw, mana rocks, searching our library for lands (or cards in general), playing multiple lands per turn, et cetera