Mewtwo GX #31
Set2020 Battle Academy
Year2020
Ungraded
$6.50−$0.48
200 sales · last Jul 8, 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 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
$25.00−$0.50
34 sales · last Jun 10, 2026
CGC 9
$18.99
21 sales · last Jul 10, 2026
CGC 9.5
$24.50
3 sales · last May 3, 2026
PSA 10
$120.00+$45.00
34 sales · last May 26, 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 323 recorded sales for this card across 15 grade tiers, 163 of them in the last 90 days. PSA 10 copies have a 90-day median of $120.00. Ungraded copies currently trade around $6.50. The top grade commands 18× 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 ($6.50) — a rough read on whether grading pays off.
CGC 4
1.3×
$8.40
PSA 5
6.2×
$39.99
PSA 6
2.5×
$16.50
CGC 7
2.3×
$14.99
PSA 7
1.8×
$12.00
Grade 8
1.2×
$8.00
PSA 8
1.6×
$10.50
CGC 8.5
1.5×
$9.60
Grade 9
2.3×
$14.99
PSA 9
3.8×
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 | 1mo ago | $3.87↗ |
| Mewtwo GX - 31/68 (Mewtwo Stamped) Promo Battle Academy 031/068 HP rnf_shop | eBay | 1mo ago |
Recent sales by grade· last 90 days
| Grade | Sold | Median | Range |
|---|---|---|---|
| Ungraded | 139 | $6.50 | $0.99 – $120.00 |
| PSA 5 | 1 | $39.99 | $39.99 |
| PSA 9 | 6 | $25.00 | $20.00 – $31.00 |
| CGC 9 | 12 | $18.99 | $14.40 – $23.99 |
| CGC 9.5 | 1 | $24.50 | $24.50 |
| PSA 10 | 3 | $135.50 |
Recent sales
| Date | Grade | Title | Sold on | Price |
|---|---|---|---|---|
| Jul 10, 2026 | CGC 9 | 2020 Pokemon Sun & Moon Battle Academy Deck Holo Mewtwo GX #31 CGC 9 MINT | Fanatics Vault | $20.00 |
| Jul 8, 2026 | Ungraded | Mewtwo GX 031/068 Stamped Full Art Ultra Rare Battle Academy Pokemon Card NM↗ | eBay | $7.50 |
| Jul 5, 2026 | Ungraded | Pokemon Battle Academy Mewtwo GX - 31/68 (Mewtwo Stamped) 031/068↗ | eBay | $8.00 |
| Jul 5, 2026 | Ungraded | Mewtwo GX - (Mewtwo Stamped) 031/068 Battle Academy Holo↗ | eBay | $5.73 |
