Pokémon sets › Lost Thunder › Slowking [Reverse Holo]

Lost Thunder Slowking [Reverse Holo] Pokémon card

Slowking [Reverse Holo] #55

Lost Thunder · 2018 · Rare

Ungraded · UK

£8.37

PSA 10 · UK

£56.44

Ungraded · US

$9.00

PSA 10 · US

$76.48

Medium confidence 64th most valuable of 421 priced cards in Lost Thunder

Solid guide price from market data — liquid, well-sampled card.

Priced against the UK market and refreshed weekly — adjusted where UK collectors reliably pay above the US average. We have not yet seen enough recent UK activity for this card to read it directly.

A PSA 10 of this card sells for about 6.7× the ungraded price — £8.37 raw against £56.44 graded.

UK ungraded · 15 readings, May 2026 to Aug 2026 +33.3%

30 days-3.6% 90 days+32.6%

Peaked at £8.89 in August 2026; lowest £6.28 in May 2026. PSA 10 moved +22.9% over a comparable period.

UK price month by month

Month	UK ungraded
May 2026	£6.31
June 2026	£7.10
July 2026	£8.68
August 2026	£8.37

UK guide prices, with the US market alongside — updated 30 August 2026. Each market is priced from real market data in that market. Estimates for collection tracking — not an appraisal or a quote.

Check recent UK sold prices on eBay →

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