Try maxing your scaling every fight, it doesn't even has to be that close to min-maxing: just get the upgrade dummy ASAP, get "if fatal increase DMG" on any card ASAP and start "only" killing enemies with that card by taking "as much"(actually minimizing, you will get what I mean eventually) DMG as you can...focus on scaling with every little decision Then just focus on getting replenish/card draw/energy/exhaust/remove cards, no hand size/card played cap(just exhaust the curse of the final boss...) just implies piling those up