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Tentacruel [1st Edition] #21 Japanese Undone Seal — Pokémon Card Price Guide & Values | PokeGoTo

Tentacruel [1st Edition] #21

Name: Tentacruel [1st Edition] #21
Brand: Pokémon
Price: 12.45 USD
Availability: InStock

Pokémon card · Released 16 Jan 2004

Market value

$12.45Ungraded▼ 31% in 3 months

Estimated from recent completed sales.

$12.45 · Oct 2026

Live now · Ungraded

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About this card

Card guide

Tentacruel [1st Edition] #21 — price research

Tentacruel [1st Edition] #21 is a card from the Japanese Undone Seal expansion (2004). Recent guide-style prices on PokeGoTo include ungraded around $12.45. Use this page to compare grade price points, scan price history when available, review PSA population data when present, and browse live eBay listings related to the card.

Listing prices and sold comps can differ from guide figures depending on condition, grading company, and seller terms. Treat everything here as educational market context — not a valuation certificate or investment advice.

From here you can add the card to a collection or buy list (including as a guest with limits), open the parent set checklist, or compare similar prints when you’re deciding what to chase next.