Mewtwo GX #31
Set2020 Battle Academy
Year2020
Ungraded
$4.99−$1.51
221 sales · last Jul 22, 2026
CGC 4
$8.40
1 sales · last May 12, 2025
PSA 5
$39.99
1 sales · last Jun 4, 2026
PSA 6
$16.50
4 sales · last Mar 19, 2026
CGC 6
$7.20
1 sales · last Aug 10, 2026
CGC 7
$14.99
1 sales · last Jan 28, 2026
PSA 7
$12.00
1 sales · last Dec 5, 2024
Grade 8
$8.00
2 sales · last Jun 16, 2025
PSA 8
$10.50−$4.45
10 sales · last Mar 23, 2026
CGC 8.5
$9.60
3 sales · last Apr 13, 2026
Grade 9
$14.99
3 sales · last May 18, 2025
PSA 9
$30.00+$5.00
35 sales · last Jul 19, 2026
CGC 9
$18.99
23 sales · last Aug 10, 2026
CGC 9.5
$22.45
4 sales · last Aug 17, 2026
PSA 10
$120.00+$35.00
35 sales · last Jul 19, 2026
CGC 10
$34.00
5 sales · last May 11, 2026
Mewtwo GX #31 price guide
Mewtwo GX #31 is a collectible Pokémon card from the 2020 Battle Academy expansion (2020). Setlot tracks 350 recorded sales for this card across 16 grade tiers, 4 of them in the last 90 days. PSA 10 copies have a 90-day median of $120.00. Ungraded copies currently trade around $4.99. The top grade commands 24× the ungraded price — grading meaningfully changes what this card is worth. The highest sale on record is $150.00 (PSA 10, May 26, 2026). 48 listings are live right now with asks from $3.87.
Price history
Grading premium
Median graded price vs. the ungraded copy ($4.99) — a rough read on whether grading pays off.
CGC 4
1.7×
$8.40
PSA 5
8.0×
$39.99
PSA 6
3.3×
$16.50
CGC 6
1.4×
$7.20
CGC 7
3.0×
$14.99
PSA 7
2.4×
$12.00
Grade 8
1.6×
$8.00
PSA 8
2.1×
$10.50
CGC 8.5
1.9×
$9.60
Grade 9
3.0×
Live listings
Search on eBay ↗Lowest asks per grade. Older listings may have ended — “seen” is when we last confirmed each one.
| Grade | Listing | Marketplace | Seen | Price |
|---|---|---|---|---|
| Ungraded 42 tracked | Mewtwo GX - (Mewtwo Stamped) 031/068 Battle Academy Holo white_101350 | eBay | 5mo ago | $3.87↗ |
| Mewtwo GX - 31/68 (Mewtwo Stamped) Promo Battle Academy 031/068 HP rnf_shop | eBay | 5mo ago |
Recent sales by grade· last 90 days
| Grade | Sold | Median | Range |
|---|---|---|---|
| Ungraded | 1 | $2.60 | $2.60 |
| CGC 6 | 1 | $7.20 | $7.20 |
| CGC 9 | 1 | $9.60 | $9.60 |
| CGC 9.5 | 1 | $18.00 | $18.00 |
Recent sales
| Date | Grade | Title | Sold on | Price |
|---|---|---|---|---|
| Aug 17, 2026 | CGC 9.5 | 2020 Pokemon Sun & Moon Battle Academy Deck Holo Mewtwo GX #31 CGC 9.5 MINT+ | — | $18.00 |
| Aug 10, 2026 | CGC 9 | 2020 Pokemon Sun & Moon Battle Academy Deck Holo Mewtwo GX #31 CGC 9 MINT | — | $9.60 |
| Aug 10, 2026 | CGC 6 | 2020 Pokemon Sun & Moon Battle Academy Deck Holo Mewtwo GX #31 CGC 6 EXMT | — | $7.20 |
| Jul 22, 2026 | Ungraded | The Pokémon Company Mewtwo GX 031/068 Battle Academy Holo Stamped Promo Eng↗ | eBay | $2.60 |
| Jul 21, 2026 | Ungraded | Pokemon Mewtwo GX #31/68 English Hidden Fates - Battle Academy 2020 Stamp |
