pokemon complete card set 50+ Official Cards Collection with 5 Foils in Any Combination and at Least 1 Rarity, GX, EX, FA, Tag Team, Or Secret Rare : Toys & Games Collecting Complete & Master Sets

Having access to repeatable cheap GY hate was crucial during longer games, where the graveyard was the waiting room between board wipes

5 Kyurem ex Provides Strategic Bench Damage Card Number: 165/086 The current format is built around multiple decks that strategically damage the opponent's benched Pokmon, as Dragapult ex and Marnie's Grimmsnarl are two of the best decks in the format

Edit: Tyranids brings up a good thought - Ancient Mew or another iconic vintage card would be a great addition, you can tell him the story behind it and introduce him to the boomer side of collecting

Tier 4 - Never Grade Skip grading No economic justification regardless of multiplier