There's a lot to say about this game, but it's best summarized as "Slay The Spire if it had balls".

Ever so slightly more ways to rig your deck in your favor. Lots of deck variety and potential for experimentation, because the relics you choose after each act boss (and certain events) can change the colors of mana you have available, which influences the cards you get in rewards. You can even choose to dip into another character's cards. This game really manages to capture the same dopamine hit you would get in Spire if claw decks actually worked. This game really lets you go nuts if you want, and yet it remains challenging at higher difficulties.

Even without all the Touhou aspects, this would still be an excellent roguelike deckbuilder game, but the Touhou-inspired themes and characters are perfectly meshed with the actual game mechanics, and a good soundtrack to boot. Truly a 10/10.