Vampire survivor excepts AI generated Spellbooks??? Pretty fun!
It gets a little repetitive though, I hardly felt any difficulty playing for 6 minutes and the the game lagged too much so i didn't really finish lol (browser version is having a hard time with all those vfx).
Overall the feedback of the spells and killing the horde of goblins is really the best part of the game, i really think the book you're holding should be changed as well to create more variety in the way you play.