Each ranking has four different tiers to it and you work your way from Bronze to Silver and so on by winning matches
The two Prism Star cards from this set I like most can certainly be used together in a deck, just make sure to use Solgaleo first, then Cyrus, otherwise, Solgaleo won't be able to add many Energy to your Pokemon if your opponent doesn't have many Pokemon in play
On top of that, for every monster it destroys in battle, you can search a Spellbook card from your deck & add it to your hand
----- , Sacrifice another creature or artifact: Yiazmat gains indestructible until end of turn
That is why Pokemon Penny Sleeves are important for every collector
So if you want to use them, wed suggest you first work through the solo mode missions that introduce these techniques