There are many kinds: R, R gold, SR, SR blue silver, SSR, SSR horizontal version, PR, HR, TV card, UR, LGR, LGR silver, USR, LR, SLR, TR, TSR, TGR, ZR, MR, NR, CR, CGR, OR, GP, background card, BCR.
1, the rarity of genuine cards is r < Sr < PR < SSR < HR < ur < CP < LGR.