TCGIntel — AI-powered TCG intelligence
Dated call · TCGIntel Select
ST21-014SR· One Piece Magazine Vol.20 · Promotional Card

Monkey.D.Luffy

Avoid

Medium conviction · Thesis-only · Founder call

Gem-rate trap: >80% grade PSA 10, so the grade is common, not a chase

Positive grading EV is the problem — it funds an ever-growing PSA 10 supply

~8-month-old card (Nov 2025) — population velocity, not just level, is the tell

JP price ceiling: PSA 10 accepted sales ~$290 cap the US premium

Public track record

40 calls on record · 19 disclosed · nothing deleted, nothing backdated

Same serial, different cards

ST21-014 · 2 variants

This serial spans $300 to $2,485. The price apps show one number for all of them — that's the trap.

Every price above is variant-matched — a real sold-comp median where the card trades, a model fair value (est) where it hasn't. Never a blended average across the serial.

Why $300

median of 5 PSA 10 sold · as of Jul 30, 2026
$349.35eBay · soldJul 28, 2026PSA 10
$300eBay · soldJul 28, 2026PSA 10
$275eBay · soldJul 28, 2026PSA 10 (auction)
$315eBay · soldJul 28, 2026PSA 10 (auction)
$289.99eBay · soldJul 28, 2026PSA 10

PSA 10 One Piece Magazine Vol.20 promo — the graded premium this AVOID is about. Raw copies clear ~$100 (a fine collectible); the 80%+ gem rate keeps pumping PSA 10 supply.

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Why we believe it

Own it raw, don't chase it graded. The tell isn't the 36,828 PSA 10 population — it's that 80%+ of graded copies come back PSA 10: the top grade is the default outcome, not an achievement, so it carries no real scarcity. That turns the ~$100 raw → PSA 10 gap (shown above) into an open arbitrage — grade for ~$20, expect a 10 four times in five — which pumps ever more PSA 10s into supply. Released only Nov 2025, the raw pool is nowhere near drained, and Japan already clears PSA 10 at ~$290 (SNKRDUNK), keeping a lid on the US premium (which has softened — see comps above). Its fixed magazine print gives it a floor (dead money, not a falling knife), but there is no appreciation case here. Avoid the PSA 10 as an investment; the ~$100 raw is a fine collectible. Founder holds raw — disclosed; this call is on the graded premium, not the cheap raw.

The other side

  • Collectibles are high-variance — demand can cool and prices can fall.
  • Graded population grows over time, which can soften high-grade premiums.
  • Population figures shown here are illustrative until the live pipeline lands.

Called 2026-07-07

How this belief has changed

  1. AVOID call opened

    2026-07-07

What is Monkey.D.Luffy (ST21-014)?

Monkey.D.Luffy — SR (One Piece Magazine Vol.20 promo) · One Piece Magazine Vol.20 · Promotional Card · SR rarity. A One Piece TCG card tracked by TCGIntel.

How much is Monkey.D.Luffy (ST21-014) worth?

It trades around $300 on the recent market. Independent read of a physical collectible — not financial advice.

Should I buy Monkey.D.Luffy (ST21-014)?

TCGIntel's current call is AVOID (Medium conviction). Independent analysis of a physical collectible — not financial advice.

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Independent analysis of physical collectibles. USD. Model forecasts, not market quotes. Not financial advice.