Mega Sableye & Tyranitar GX

The cheapest copy has been sitting unsold at £23.58 for 7 days, so you'll need to undercut it to move stock quickly. Don't bother grading raw copies—a PSA 10 hasn't shifted in two weeks despite being worth £193.25, and the cost of grading rarely pays off unless the card is flawless. That flagged LP copy at £23.58 is dragging the market down; a clean raw copy can realistically ask more, since the median sale price across 32 UK sales in 90 days is £40.76, with five copies moving in the last fortnight alone. UK asks currently span from £23.58 to £41.15 median, so there's room to price competitively without matching the lowest ask.

• NotableThe cheapest copy has sat unsold 7 days at £23.58. Undercut it to move first.
• CautionPSA 10 hasn't sold in two weeks. Don't pay to grade.
• CautionA PSA 10 is worth 2.8× a 9 (£193 vs £69.41); only grade a flawless copy.
• CautionThe cheapest copy (£23.58) is flagged: graded LP by the classifier. A clean copy can ask more.
• NotableRaw copies actually sell for £40.76 (32 UK sales in 90 days, latest £45.29 on 25 Sep); the cheapest ask is £23.58.
• NotableRaw copies sell about 2.5 times a week (5 sales in 14 days).
• NotableUK asks run from £23.58 to a £41.15 median; the cheapest is 43% under the middle.