Mewtwo GX #31
Set2020 Battle Academy
Year2020
Ungraded
$6.99+$0.49
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
$17.00−$1.99
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, 91 of them in the last 90 days. PSA 10 copies have a 90-day median of $120.00. Ungraded copies currently trade around $6.99. The top grade commands 17× 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 ($6.99) — a rough read on whether grading pays off.
CGC 4
1.2×
$8.40
PSA 5
5.7×
$39.99
PSA 6
2.4×
$16.50
CGC 6
1.0×
$7.20
CGC 7
2.1×
$14.99
PSA 7
1.7×
$12.00
Grade 8
1.1×
$8.00
PSA 8
1.5×
$10.50
CGC 8.5
1.4×
$9.60
Grade 9
2.1×
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 | 3mo ago | $3.87↗ |
| Mewtwo GX - 31/68 (Mewtwo Stamped) Promo Battle Academy 031/068 HP rnf_shop | eBay | 3mo ago |
Recent sales by grade· last 90 days
| Grade | Sold | Median | Range |
|---|---|---|---|
| Ungraded | 78 | $6.99 | $2.25 – $110.00 |
| PSA 5 | 1 | $39.99 | $39.99 |
| CGC 6 | 1 | $7.20 | $7.20 |
| PSA 9 | 3 | $30.00 | $25.00 – $31.00 |
| CGC 9 | 6 | $17.00 | $9.60 – $22.50 |
| CGC 9.5 | 1 | $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 |
