how do pokemon booster packs work EVERY TCG Product EXPLAINED For Beginners Booster pack (TCG) - Bulbapedia,

there could be a $50 card lurking inside

Only sleeve the ones that are rare, valuable, or in near-mint/mint condition

Charizard ex decks can run extremely light on energy, thanks to its Infernal Reign ability: when you evolve Charizard EX, you can search your deck for three fire energy cards and attach them to any of your Pokmon

If you own a rare or valuable card in excellent condition, grading can be a fantastic investment

Charizard makes a powerful appearance as a Stage 2 Pokmon with 170 HP and an attack that can deal up to 330 damage with Leon in the discard pile

The deck clearly is about keywords and keyword counters