The most powerful Altman card in the world is SSR, which is divided into R, SR, SSR, PR, UR, HR, CP, LGR, SP and GR SR SSR grades. The rarity level is usually UR & gtSSR & gtSR & gtR>N (SSR is the highest level in some card-changing games). SSR is called superior super rare, which is super rare. Generally, it is the highest rare level of card exchange games.