Unless the pawn shop is known to specialize in trading card games, chances are high the clerk wont know the ins and outs of Pokemon card trading
As for weakness, theres a lack of finishers and bombs, so its a slow and grindier deck, and you might want to address that
Bumbleflower for Consecrated SphinxConsecrated Sphinx to be good
If one player has fewer cards than required, that player loses
It includes two 60-card decks (a green-black deck and a blue-red deck) featuring cards from Adventures in the Forgotten Realms, Strixhaven: School of Mages, Kaldheim, and Zendikar Rising
The issue is that in one-on-one, if youre the burn deck, they have less life the whole time and this is just a terrible rate