Your Constructed MTG Arena ranks are used to determine your prizes at the end of the season, which can lead to several booster packs earned and a pile of gold to do what you please with
If Raphael, Most Attitude leaves the battlefield, and later another Raphael, Most Attitude enters the battlefield, it is a new object (even if the two were represented by the same card)
Just a heads up, the Special Edition Collector Boosters don't come with Serialized Ring cards
If leaving it up to chance on packs and retail listings isn't what you want, you can always buy single Pokmon cards from websites like TCGPlayer or eBay, where a variety of third-party collectors are looking to sell their great pulls
1 Foil etched display commander (on thicker, non-tournament legal card stock)