Base Expansion PackJPN
Set market cap
104 cards tracked dailyWhat to target in Base Expansion Pack
The top 10 cards are 49% of the set’s $5,243.00 estimated singles cost — plan these first and the rest follows on a normal budget.
| # | Card | Number | Rarity | Market | PSA 10 |
|---|---|---|---|---|---|
| 1 |  Gengar | #117 | Holo Rare | $649.99 | $823.86 |
| 2 |  Mew | #119 | Holo Rare | $490.88 | $2,860.67 |
| 3 |  Pichu | #114 | Holo Rare | $201.06 | $215.00 |
| 4 |  Butterfree | #98 | Holo Rare | $199.99 | $399.83 |
| 5 |  Tyranitar | #127 | Holo Rare | $199.99 | $450.00 |
| 6 |  Clefable | #125 | Holo Rare | $185.00 | $185.37 |
| 7 |  Alakazam | #116 | Holo Rare | $184.49 | $299.50 |
| 8 |  Charizard | #103 | Holo Rare | $150.00 | $2,220.18 |
| 9 |  Mew | #87 | Rare | $150.00 | $510.00 |
| 10 |  Raichu | #113 | Holo Rare | $149.99 | $1,102.33 |
How Base Expansion Pack is built
Rarity breakdown
Price distribution
Most cards are bulk — the set’s value concentrates in a few chase cards.
Singles or sealed?
Sealed product comparison
Which Base Expansion Pack cards are worth grading?
Positive expected value after ~$25 fees at live PSA prices and this set's real gem rates.
Mew #119raw $490.88 → PSA 10 $2,860.67 5.8×EV +$376.54Butterfree #98raw $199.99 → PSA 10 $399.83 2×EV +$64.69Tyranitar #127raw $199.99 → PSA 10 $450.00 2.3×EV +$189.19Charizard #103raw $150.00 → PSA 10 $2,220.18 14.8×EV +$875.34Mew #87raw $150.00 → PSA 10 $510.00 3.4×EV +$86.80Raichu #113raw $149.99 → PSA 10 $1,102.33 7.3×EV +$455.37Strong PSA 10 premium — the math works only on gem-worthy copies.
Fees eat most of the margin. Grade to preserve a pristine pull, not for profit.
Venusaur #97raw $73.90 → PSA 10 $164.99 2.2×
Skarmory #128raw $71.98 → PSA 10 $162.52 2.3×EV −$2.26
Magikarp #12raw $44.24 → PSA 10 $100.89 2.3×EV −$0.27
Tyranitar #95raw $40.00 → PSA 10 $84.79 2.1×EV +$14.45
Alakazam #84raw $37.57 → PSA 10 $76.00 2×EV +$1.78
Arbok #67raw $25.00 → PSA 10 $45.00 1.8×EV −$14.62Premiums and EV use tonight’s PSA prices and this set’s real gem rates — not projections.
What collectors say about Base Expansion Pack
Creators on Base Expansion Pack
Synthesized from widely-reported collector consensus — see a take that’s off? Use the report link on any card page.
Protect your Base Expansion Pack cards
This set has 12 cards worth $100+ — sleeve-and-toploader territory at minimum, and the chase cards deserve double-sleeving.
Every card worth more than bulk goes in a sleeve before anything else touches it.
Amazon →eBay →The archival-safe standard for cards you handle — double-sleeve chase cards with a perfect-fit inner.
Amazon →eBay →Affiliate links — purchases support CardPrice at no extra cost. Full guide: how to build & store a master set.
All cards 131
Most valuable cards in Base Expansion Pack
- Gengar #117 — $649.99
- Mew #119 — $490.88
- Mewtwo #118 — $399.99
- Mewtwo #118 — $399.99
- Blastoise #108 — $204.99
- Pichu #114 — $201.06
- Butterfree #98 — $199.99
- Tyranitar #127 — $199.99
- Clefable #125 — $185.00
- Alakazam #116 — $184.49
About Base Expansion Pack (Japanese)
Base Expansion Pack (Japanese) is a Pokémon TCG expansion in the Japanese series, released on 2001-12-01. The set contains 131 cards — 128 in the base set plus 3 secret rares. The combined market value of a complete set is currently $6,990.68, with Gengar #117 as the most valuable card at $649.99. Prices update nightly from live market data.