I'm not an expert on these but I don't believe there are any extremely valuable cards here. There's a mix of common, uncommon, rares, holos and reverse holos. This listing comes with all 4 boxes, plus there tin lunch-type box. This includes over 1500 cards, a few packs of unopened energy cards and some other accessories.
I tried spreading out some of the cards so you can get an idea of what's included.
No returns, but I'm happy to try and answer any questions before purchasing.