Awesome read. I bought the game few weeks ago and the tutorial was a huge letdown. I'm glad I took time and played the game instead of trying to understand the tutorial which made the game look so complicated and confusing. I hope they remake it someday and summarize it instead of overexplaining.
Been playing for ten hours now and hoping to win with each deck. So much fun!
Thanks for making these posts!
Just to add more info on those images you found for Dolphin. The original art without the text is from this artist https://www.artstation.com/pierreroussel/albums/8482338. I love them.