Ferrothorn

The gap between what UK sellers are asking and what this card actually trades for on Cardmarket is staggering—the cheapest ask at £12.39 represents a 2781% markup over the £0.43 price. That said, the asking price has at least come down 11.4% from £13.99 recently, so there's some movement. If you're after the pokeball printing instead, you'll be looking at £6.57, which is still significantly more but a less extreme jump than the standard version commands here.

• NotableUK buyers pay 2781% over Cardmarket for this card (4 sellers).
• NotableCheapest UK ask fell 11.4% since the last crawl (£13.99 → £12.39).
• NotableThe pokeball printing is 15.3× this one (£6.57 vs £0.43).