Union Activation
Maze of the Master · #EN023

Union Activation

Union Activation is a Ultra Rare Spell Card from Maze of the Master (EN023) in the Yu-Gi-Oh! TCG. Cactaur's latest catalog snapshot shows a market reference near $2.50 for ungraded copies.

Maze of the Master set collectorsPrice-conscious singles buyers
TCGPlayer market $2.50
Cardmarket trend
Rarity Ultra Rare
App coming soon

Who is this card for?

Union Activation suits collectors and players working on Maze of the Master who need the Ultra Rare slot. Compare listing photos to your target edition and confirm the YGOPRODeck set code before buying online.

What is Union Activation from Maze of the Master?

Union Activation is a Spell Card in Maze of the Master numbered EN023. Union Activation (EN023) from Maze of the Master should be evaluated with set context, stats, archetype, and condition together. This printing is from Maze of the Master. Collector number EN023 distinguishes this printing from same-name cards in other sets.

What is Union Activation worth today?

Cactaur tracks a market reference near $2.50 for Union Activation. Low and high spread runs $2.50 to null. This printing is from Maze of the Master. Collector number EN023 distinguishes this printing from same-name cards in other sets. Catalogued rarity: Ultra Rare.

SetMaze of the Master
NumberEN023
RarityUltra Rare
TCGPlayer USD$2.50
Cardmarket EUR

How collectible is Union Activation?

Union Activation is a Ultra Rare printing in Maze of the Master. Master set builders use set code and passcode to track completion progress. This printing is from Maze of the Master. Collector number EN023 distinguishes this printing from same-name cards in other sets.

What are the key details for Union Activation?

Union Activation lists as Spell Card (Normal). Rules text is indexed in the catalog for search and deck research. This printing is from Maze of the Master. Collector number EN023 distinguishes this printing from same-name cards in other sets. Catalogued rarity: Ultra Rare.

Cactaur's take

Union Activation (EN023) from Maze of the Master should be evaluated with set context, stats, archetype, and condition together.

Pros

  • Union Activation is catalogued as Ultra Rare Spell Card in Maze of the Master, making set code and passcode verification straightforward.
  • Public market data shows a reference near $2.50.

Cons

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

Verdict: Use $2.50 as a benchmark, then adjust for edition, grade, and how quickly you need to buy or sell.

FAQ

What is Union Activation from Maze of the Master?

Union Activation is a Ultra Rare Spell Card from Maze of the Master numbered EN023 in the Yu-Gi-Oh! TCG. Cactaur indexes set, rarity, stats, and market references for this printing.

How much is Union Activation worth?

Cactaur's catalog snapshot shows a market reference near $2.50 for ungraded Union Activation. Condition, edition, and recent sold comps can move realized prices above or below that benchmark.

What rarity is Union Activation?

Union Activation is catalogued as Ultra Rare in Maze of the Master. Use the set code on listings to confirm you are buying this exact printing.

How do I verify the correct Union Activation printing?

Match set code mztm, collector number EN023, and edition. YGOPRODeck-backed metadata on this page is the reference Cactaur uses for catalog keys. This printing is from Maze of the Master.

Should I buy Union Activation near mint or played?

Near-mint copies command the catalog reference near $2.50. 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.