The cards needed to complete this deck include Riolu x2, Igglybuff x2, Darkrai x2, Mega Lucario ex x2, Sabrina x1, Cyrus x1, Copycat x2, Korrina x1, Arena of Antiquity x1, X Speed x2, Pok Ball x2, and Professor's Research x2
You can add a little more if youre using three or more colors, or a little less if youre in a single-color archetype like Goblins that relies on cheap creatures
It might not always be worth spending an extra 4 mana just to get a couple of land creatures, but it offers the flexibility to do it if you have nothing better to spend mana on that turn
Unlimited has been reprinted to death so it definitely is tons larger than 1st edition
The price of the Ultra Ball version might be the cheapest on the list, but it is steadily climbing as time goes on