[Eh. This is a good waste of time if anything. Even if the older man is not convinced, Cloud can at least say he's had an entertaining day. Ravus clearly has some issues. Not that the blond wants to know what they are.]

From what I know about collectible cards-[Which is rudimentary at best]- there's different value placed on them depending on the amount printed and how they are printed. Energy cards, which are used to make moves, are pretty common. Then you have common monster or soldier cards, and then you get to uncommon and rare cards. Rare cards tend to be fancier, and some of them are shiny or holographic. That ups the rarity right there since there'll be a more limited run of them so not everyone has overpowered decks. From the description on the cards, they tend to use more energy cards and sometimes need a sacrifice of a lower level card or multiple cards to be played. So if you wanted to collect cards for their value, then going for those is the best bet.

[Cloud, ever the well of information. No one ever said most of it was useful.]