Very interesting concept, I liked it a lot. I also lost a lot, in fact every time. I like the idea of building your deck from duel to duel, and once you understand the system it's clear a lot of thought went into the game design. The Recycle phase didn't make sense to me until much later and I'm sure if I played more I'd realize more of the intricacies.
The game has polish in so many aspects, but due to the vast scope and potential the rough edges of the project are more glaring. There's so much information thrown at you from the beginning and the game would benefit from a softer introduction. That would also let you remove the legend, which is useful for learning but took some time to fully understand and after that point it was taking up screenspace.
I felt like the art was a bit too in your face, especially when you lose, but it was all solid quality and there was a ton of it which is impressive given how much work besides art was needed for this project.