Mermaid Knight
Ancient Sanctuary · #025

Mermaid Knight

Mermaid Knight is a Common Effect Monster from Ancient Sanctuary (025) in the Yu-Gi-Oh! TCG. Stats: WATER, Level 4, ATK 1500, DEF 700. Archetype: Umi. Cactaur's latest catalog snapshot shows a market reference near $0.83 for ungraded copies.

Ancient Sanctuary set collectorsUmi deck buildersPrice-conscious singles buyers
TCGPlayer market $0.83
Cardmarket trend
Rarity Common
App coming soon

Who is this card for?

Mermaid Knight suits collectors and players working on Ancient Sanctuary who need the Common slot. Compare listing photos to your target edition and confirm the YGOPRODeck set code before buying online.

What is Mermaid Knight from Ancient Sanctuary?

Mermaid Knight is a Effect Monster in Ancient Sanctuary numbered 025. WATER, Level 4, ATK 1500, DEF 700. Archetype: Umi. Mermaid Knight (025) from Ancient Sanctuary should be evaluated with set context, stats, archetype, and condition together. This printing is from Ancient Sanctuary.

What is Mermaid Knight worth today?

Cactaur tracks a market reference near $0.83 for Mermaid Knight. Low and high spread runs $0.83 to null. This printing is from Ancient Sanctuary. Collector number 025 distinguishes this printing from same-name cards in other sets. Catalogued rarity: Common. The set released in 2004.

SetAncient Sanctuary
Number025
RarityCommon
TCGPlayer USD$0.83
Cardmarket EUR

How collectible is Mermaid Knight?

Mermaid Knight is a Common printing in Ancient Sanctuary. Master set builders use set code and passcode to track completion progress. This printing is from Ancient Sanctuary. Collector number 025 distinguishes this printing from same-name cards in other sets. Catalogued rarity: Common.

What are the key details for Mermaid Knight?

Mermaid Knight lists as Effect Monster (Aqua). Rules text is indexed in the catalog for search and deck research. This printing is from Ancient Sanctuary. Collector number 025 distinguishes this printing from same-name cards in other sets. Catalogued rarity: Common. The set released in 2004.

Cactaur's take

Mermaid Knight (025) from Ancient Sanctuary should be evaluated with set context, stats, archetype, and condition together.

Pros

  • Mermaid Knight is catalogued as Common Effect Monster in Ancient Sanctuary, making set code and passcode verification straightforward.
  • Public market data shows a reference near $0.83.
  • WATER, Level 4, ATK 1500, DEF 700 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 $0.83 as a benchmark, then adjust for edition, grade, and how quickly you need to buy or sell.

FAQ

What is Mermaid Knight from Ancient Sanctuary?

Mermaid Knight is a Common Effect Monster from Ancient Sanctuary numbered 025 in the Yu-Gi-Oh! TCG. Cactaur indexes set, rarity, stats, and market references for this printing.

How much is Mermaid Knight worth?

Cactaur's catalog snapshot shows a market reference near $0.83 for ungraded Mermaid Knight. Condition, edition, and recent sold comps can move realized prices above or below that benchmark.

What rarity is Mermaid Knight?

Mermaid Knight is catalogued as Common in Ancient Sanctuary. Use the set code on listings to confirm you are buying this exact printing. This printing is from Ancient Sanctuary.

How do I verify the correct Mermaid Knight printing?

Match set code ast, collector number 025, and edition. YGOPRODeck-backed metadata on this page is the reference Cactaur uses for catalog keys. This printing is from Ancient Sanctuary.

Should I buy Mermaid Knight near mint or played?

Near-mint copies command the catalog reference near $0.83. 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.