Gem-Knight Sardonyx
Hidden Arsenal 7: Knight of Stars · #EN001

Gem-Knight Sardonyx

Gem-Knight Sardonyx is a Super Rare Gemini Monster from Hidden Arsenal 7: Knight of Stars (EN001) in the Yu-Gi-Oh! TCG. Stats: EARTH, Level 4, ATK 1800, DEF 900. Archetype: Gem-. Cactaur's latest catalog snapshot shows a market reference near $0.34 for ungraded copies.

Hidden Arsenal 7: Knight of Stars set collectorsGem- deck buildersPrice-conscious singles buyers
TCGPlayer market $0.34
Cardmarket trend
Rarity Super Rare
App coming soon

Who is this card for?

Gem-Knight Sardonyx suits collectors and players working on Hidden Arsenal 7: Knight of Stars who need the Super Rare slot. Compare listing photos to your target edition and confirm the YGOPRODeck set code before buying online.

What is Gem-Knight Sardonyx from Hidden Arsenal 7: Knight of Stars?

Gem-Knight Sardonyx is a Gemini Monster in Hidden Arsenal 7: Knight of Stars numbered EN001. EARTH, Level 4, ATK 1800, DEF 900. Archetype: Gem-. Gem-Knight Sardonyx (EN001) from Hidden Arsenal 7: Knight of Stars should be evaluated with set context, stats, archetype, and condition together.

What is Gem-Knight Sardonyx worth today?

Cactaur tracks a market reference near $0.34 for Gem-Knight Sardonyx. Low and high spread runs $0.34 to null. This printing is from Hidden Arsenal 7: Knight of Stars. Collector number EN001 distinguishes this printing from same-name cards in other sets. Catalogued rarity: Super Rare.

SetHidden Arsenal 7: Knight of Stars
NumberEN001
RaritySuper Rare
TCGPlayer USD$0.34
Cardmarket EUR

How collectible is Gem-Knight Sardonyx?

Gem-Knight Sardonyx is a Super Rare printing in Hidden Arsenal 7: Knight of Stars. Master set builders use set code and passcode to track completion progress. This printing is from Hidden Arsenal 7: Knight of Stars. Collector number EN001 distinguishes this printing from same-name cards in other sets.

What are the key details for Gem-Knight Sardonyx?

Gem-Knight Sardonyx lists as Gemini Monster (Pyro). Rules text is indexed in the catalog for search and deck research. This printing is from Hidden Arsenal 7: Knight of Stars. Collector number EN001 distinguishes this printing from same-name cards in other sets. Catalogued rarity: Super Rare.

Cactaur's take

Gem-Knight Sardonyx (EN001) from Hidden Arsenal 7: Knight of Stars should be evaluated with set context, stats, archetype, and condition together.

Pros

  • Gem-Knight Sardonyx is catalogued as Super Rare Gemini Monster in Hidden Arsenal 7: Knight of Stars, making set code and passcode verification straightforward.
  • Public market data shows a reference near $0.34.
  • EARTH, Level 4, ATK 1800, DEF 900 helps deck builders confirm the correct printing quickly.

Cons

  • Raw market prices vary by condition and edition — near-mint estimates are not slab grades.

Verdict: Use $0.34 as a benchmark, then adjust for edition, grade, and how quickly you need to buy or sell.

FAQ

What is Gem-Knight Sardonyx from Hidden Arsenal 7: Knight of Stars?

Gem-Knight Sardonyx is a Super Rare Gemini Monster from Hidden Arsenal 7: Knight of Stars numbered EN001 in the Yu-Gi-Oh! TCG. Cactaur indexes set, rarity, stats, and market references for this printing.

How much is Gem-Knight Sardonyx worth?

Cactaur's catalog snapshot shows a market reference near $0.34 for ungraded Gem-Knight Sardonyx. Condition, edition, and recent sold comps can move realized prices above or below that benchmark.

What rarity is Gem-Knight Sardonyx?

Gem-Knight Sardonyx is catalogued as Super Rare in Hidden Arsenal 7: Knight of Stars. Use the set code on listings to confirm you are buying this exact printing.

How do I verify the correct Gem-Knight Sardonyx printing?

Match set code ha07, collector number EN001, and edition. YGOPRODeck-backed metadata on this page is the reference Cactaur uses for catalog keys. This printing is from Hidden Arsenal 7: Knight of Stars.

Should I buy Gem-Knight Sardonyx near mint or played?

Near-mint copies command the catalog reference near $0.34. Heavily played copies trade lower unless the card is a chase rare where any clean copy is scarce.

Related cards

Trust & data sources. Cactaur displays catalog and market data from pokemontcg.io embedded TCGPlayer/Cardmarket references. Prices change frequently and are not guarantees.

Cactaur does not authenticate cards or guarantee values. Scan your copy in the iPhone app for condition-aware guidance.

Catalog snapshot: 2026-06-25. Last updated: 2026-06-25.