Tarot cards

[MeyuChan]

So I‘m really interested in tarot cards and I would love to have them but I don’t really know how to use them or what they do...
Could someone please explain me what they do and which I should get if I decide to get them?
Thank you very much for your great advices!!

 

[MiniMe3388]

If you like Undertale then I recommend this deck: https://www.fangamer.com/products/undertale-tarot-cards