Slowking

Lost Thunder · #55/214 · Rare · 2018

All 61 Slowking cards ranked by value →
$9.76
Reverse Holofoil · Market price ▲ 6.2% (30d)
Prices as of Oct 16, 2026
HP 120WaterStage 1Art · sowsow
15graded pop
40%gem rate
15.5×PSA 10 vs raw
-18%off ATH $3.53 · Sep 2026
Market data

Printings & price history

Reverse Holofoil▲ 1.1% 7d$9.76
Low $9.00Mid $11.47

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Graded market

Graded values

PSA 10 report →updated 2026-10-16
Grade 6 est.$8.78
Grade 5 est.$7.39
Grade 4 est.$6.10
Grade 3 est.$5.08
Grade 2 est.$4.16
Grade 1 est.$3.51

Grades 1–6 are estimates modeled from the raw price — PSA/CGC/BGS 7–10 and Ungraded are live tracked market values.

Reverse Holofoil · PSA 10 price history$75.73

PSA 10 chart is building — graded values are tracked nightly, a new point appears each day.

Graded population census · updated 2026-09-17

Reverse Holofoil
PSA7 graded · 3 gem 10
CGC5 graded · 2 gem 10

Population data from PriceCharting, updated monthly.

More Slowking cards all 61 ranked by value →

Attacks

Memory Melt
Look at your opponent's hand and put a card you find there in the Lost Zone.
60+Psychic
This attack does 20 more damage times the amount of Energy attached to your opponent's Active Pokémon.

“This Pokémon is so famed for its intellect that a proverb still persists in some regions: "When in doubt, ask Slowking."”

How much is Slowking #55/214 worth?

Right now (October 16, 2026) the going rate for an ungraded Slowking #55/214 from Lost Thunder is about $2.91. Across the 2 printings we track, copies run anywhere from $2.10 to $50.12 depending on the version you're holding.

Grading changes the math on this one: a PSA 10 is valued around $45.00, roughly 15.5x the raw price, while a PSA 9 sits near $19.00. 7 copies have been graded to date, and 43% of them came back a 10 — worth knowing before you pay grading fees.

These figures come from nightly market-data syncs verified against completed sales. Use the chart above to see the trend before you buy or sell.

Collecting Lost Thunder?Full master set guide — every card, chase list, and completion cost→