The core rules are very simple to learn, plus the game keeps track of the minutiae for you.

Each character's deck is roughly $10 to buy physical, and since there's 20 characters total this gets pricey if you want a complete set. You get 10 characters for $15 in this digital version.

Yomi went through several versions until arriving at the current, very balanced state. Each character is viable.

No packs to grind through for new cards. Each character deck is pre-built and balanced against each other deck. Getting better at the game is a matter of learning each character's strategies and how to best use and deal with them, as opposed to just getting better cards.