- Understanding the rarity tiers (e.g., common, uncommon, rare, ultra-rare) and how they influence the collecting and trading dynamics. 5. **Are there any special or limited edition Doctor Who cards that are particularly sought after by collectors?

- Understanding the rarity tiers (e.g., common, uncommon, rare, ultra-rare) and how they influence the collecting and trading dynamics. 5. **Are there any special or limited edition Doctor Who cards that are particularly sought after by collectors?