/jp/ - Otaku Culture

hello, /a/non here.
Since the massive genocide of lolis on my board, I've started playing a game named touhou, a lot, and I suck. I don't understand what exactly is a spell card and how to use it, if I can use it.
If you can explain me how it work to get them/use them I'll be grateful. inb4 suck my cock dude