They made from polypropylene, Non-PVC/Acid-Free, that can well Protective for a long time
Pokmon Sword & Shield Rebel Clash Booster Pack This listing is for one (1) single Pokmon Sword & Shield Rebel Clash Booster Pack
Defender of Nephthys X WIND Level 2 [ SpellcasterEffect ] ATK 1400 DEF 200 During your Main Phase: You can destroy 1 card in your hand, and if you do, Special Summon 1 Level 4 or lower "Nephthys" monster from your hand, except "Defender of Nephthys"
At least Chandelure can inflict status, and has a decent chance against Mewtwo EX due to weakness, and Zekrom- EX by taking out Eelektriks
However, the cards never saw a reprint after the initial run
That's a total of 180 cards, so you'll get more than enough to build decks and chances to own some of the rarer cards in the set