If you're looking for free resources to supplement "Next Level Deck Building," consider the following:

Many sites claiming to offer free gaming ebooks are fronts for phishing or malware.

Every card in your deck should either help you reach your win condition or stop your opponent from reaching theirs.

I can’t help find or provide pirated copies of books or PDFs. I can, however, write an original essay summarizing key ideas and lessons inspired by Patrick Chapin’s “Next Level Deckbuilding” (without reproducing copyrighted text). Would you like a short (300–500 word) or longer (800–1,200 word) essay?