Series 1 sports the first 250 cards of the 2025/26 Upper Deck Base Set. It includes 198 veteran cards, 49 Young Guns cards and three checklist cards. The iconic Young Guns are the most anticipated rookie cards of the season and the Series 1 checklist is loaded with high-end rookies! Collect at least one (1) Young Guns card per box, on average!Keep an eye out for stunning Outburst Silver parallels of the complete Base Set!