it would be lovely to have a level number coloured in colour you have at the end of level and some secret feature to congratulate you when you have a monochromatic level selection screen
i think that if the game started with lets say 3 rows and you got a row per every level up it would be more challenging. with just two or three parts its too easy but with many different parts its impossible in this grid
i was thinking about more sets of characters and maybe giving them all-the-set advantage. and maybe some think to make prefer players play only one kind of cards, like only vampires... ie. all vampires out of game heal 1x (number of vampires)
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 "Kongai"){kind=icon}