Vintage
Weakness Guard
Aquapolis · #141 · English · released 2003
Raw market price
$57
30 days
▲ 25.1%
90 days
▲ 33%
Graded prices & PSA population
| Grade | Market price | PSA population |
|---|---|---|
| PSA 10 | $344 | 21 |
| PSA 8 | $255 | 15 |
PSA population recorded 2026-09-05 · total graded 58
Why this card matters
pop
18x PSA 10 premium over raw and thin comp samples (n≤5 per grade) with no active listings signal genuinely constrained supply.
demand
Weakness Guard is a utility trainer with no iconic character or nostalgia anchor, limiting collector pull beyond niche Aquapolis set completionists.
artist
No notable alt-art, unique illustration, or sought-after artist credit driving aesthetic demand for this uncommon trainer.
catalyst
21% 30-day price momentum is encouraging but rests on very small sample sizes, making the trend statistically fragile and hard to trust as a durable catalyst.
Graded comps on record
$344
PSA 10
$269
CGC 6.5
$255
PSA 8
$199
PSA 7
$109
CGC 10
$67
CGC 7.5
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More from Aquapolis
Market data recorded 2026-09-04 from licensed market sources. MASTER records prices daily and never invents a number — estimated values are always labeled. Not financial advice.