I agree there’s likely a balance issue, given the balance is based on how many times I’ve tested it against myself. I love seeing the variety in player builds, and while I haven't noticed a dominant strategy, I bet there is one.
Currently, the top three players use a combination of damage with some healing or shielding. Players in 4th and 5th place, including yourself, use defensive builds. Interestingly, the top three players have less than 10 cards in their decks, while you have over 20. I didn’t expect a larger deck to perform so well, but you proved me wrong.
Thanks for the playthrough; it's fascinating to see everyone's approach to my game.