Idea for a new type of item

I would love to see a type of item, card, joker type thing that has a powerful effect at some kind of significant cost that would be the equivalent of how in games like Isaac you might consume hearts, in this it could be reducing hands or changing the antes, but thematically in keeping with the mystical vibe of the game with spectral cards, tarot, it could be themed as a Hex, Ritual, Witchcraft, Necronomicon or something like that.

You could have a necronomicon with creatures or hexes like medusa turning every selected card in your hand into a stone card in case you need to max out on points, or like a hound that "eats" every card in your hand to draw more/seek out whatever your most popular card is, just some think careful before using consumables or maybe they can be in the deck itself