
The short answer
The official Steam description says cards may be crumpled, damaged, or torn; it also says cards in better condition cost more. Official trailer footage shows different copies in a sell interface with their own quality display and prices. A single universal number beside a card name would hide that variation.
Keep these fields separate
| Field | What it describes | What the site does |
|---|---|---|
| Rarity | The printed R, SR, or SSR label. | Stored on every documented card page. |
| Color set | Blue, white, red, or purple binder group. | Used for set checklists and achievements. |
| Quality / condition | The state of an individual copy. | Explained here, not converted into an invented formula. |
| Foil | A special collectible variant. | Tracked only as a visitor's own observation. |
Mending and swapping
The official store specifically presents mending or swapping cards as ways to improve the collection. That supports a decision loop: inspect a copy, compare its condition with the copy you already hold, then decide whether collection progress or selling is the better outcome.
How to record a useful value note
- Record the card name and rarity.
- Record the quality shown on that exact copy.
- Record whether it is a foil copy.
- Record the displayed sell price and game version/date.
- Compare only like-for-like copies before drawing a rule.