Butterfree

The cheapest copy has sat unsold 8 days at £5.99—undercut it if you want to shift one quickly. Butterfree has climbed 17.9% this week and 40.4% this month, which is genuine momentum rather than a flash spike, and it's hit a 30-day high of £9.14 against a low of £6.50. Most UK stock is played condition (4 of 6 known copies), so a Near Mint copy would stand out. The asks range from £5.99 to £9.73 median, leaving a 38% gap between the floor and middle ground.

• NotableThe cheapest copy has sat unsold 8 days at £5.99. Undercut it to move first.
• NotableUp +17.9% this week and +40.4% this month. Momentum, not a spike.
• Notable67% of the UK listings are played copies (4 of 6); a Near Mint copy is the scarce one.
• NotableAt a 30-day high of £9.14 (the low was £6.50).
• NotableUK asks run from £5.99 to a £9.73 median; the cheapest is 38% under the middle.