Gyarados G

The cheapest copy has been sat unsold at £3.99 for 7 days, so you'll need to undercut it to shift stock first. Watch the momentum though—it's jumped 23.3% in a week but only 5.8% over the month, which suggests you should either sell into the spike or wait for a pullback. The £3.99 ask is graded MP condition, so a clean played copy can command a bit more. All 9 UK listings are played copies; if you can find a Near Mint one, that's genuinely scarce, and the foil version pulls 2.1× the regular price at £6.63 versus £3.12.

• NotableThe cheapest copy has sat unsold 7 days at £3.99. Undercut it to move first.
• CautionJumped +23.3% in a week with no monthly trend (+5.8% over 30 days). Sell into it or wait for the pullback.
• CautionThe cheapest copy (£3.99) is flagged: graded MP by the classifier. A clean copy can ask more.
• Notable100% of the UK listings are played copies (9 of 9); a Near Mint copy is the scarce one.
• NotableFoil sells at 2.1× the regular printing (£6.63 vs £3.12).