Mega Slowbro Ex

XY Promos · #263/78 · Common · 2013JPN

$38.75
Market price ▲ 0.0% (1Y)
Prices as of Aug 14, 2026
696graded pop
78%gem rate
5.7×PSA 10 vs raw
-6%off ATH $28.99 · Jul 2025
Market data

Price history

Holofoil
Low $129.99Mid $129.99High $129.99

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Live listings

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Graded market

Graded values

PSA 10 report →updated 2026-08-14
Grade 6 est.$25.78
Grade 5 est.$21.71
Grade 4 est.$17.91
Grade 3 est.$14.93
Grade 2 est.$12.21
Grade 1 est.$10.31

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

PSA 10 price history$219.75

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

Graded population census · updated 2026-08-09

PSA656 graded · 519 gem 10
CGC40 graded · 25 gem 10

Population data from PriceCharting, updated monthly.

How much is Mega Slowbro Ex #263/78 worth?

Right now (August 14, 2026) the going rate for an ungraded Mega Slowbro Ex #263/78 from XY Promos is about $38.75.

Grading changes the math on this one: a PSA 10 is valued around $219.75, roughly 5.7x the raw price. 656 copies have been graded to date, and 79% of them came back a 10 — worth knowing before you pay grading fees.

We update this valuation every night from live market data and verify it against real completed sales — see the chart above for how Mega Slowbro Ex has moved over time.

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