Gem-Knight Ruby

Hidden Arsenal 5: Steelswarm Invasion HA05-EN019 • secret-rare

Set: Hidden Arsenal 5: Steelswarm Invasion
Printing code: HA05-EN019
Rarity: Secret rare
Card type: Fusion monster
Attribute: Earth
Level / Rank: 6
ATK: 2500
DEF: 1300

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38,297cards in the catalog

2other printings of this card

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Lore

Why it matters

Gem-Knight Ruby debuted in Hidden Arsenal 5 as a powerful fusion monster that highlights the archetype's core mechanic of banishing Gem-Knight monsters to increase its own attack. Its Secret Rare printing is particularly sought after by collectors for the distinct diagonal foil pattern characteristic of the early Hidden Arsenal sets.

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Provenance

Where it came from

Gem-Knight Ruby was released in the 2012 North American set Hidden Arsenal 5: Steelswarm Invasion, serving as a core fusion monster for the Gem-Knight archetype. This archetype, introduced during the Yu-Gi-Oh! Zexal era, centers on the concept of Earth-attribute Warrior-type monsters that utilize fusion summoning to gain momentum, drawing inspiration from mineralogy and elemental magic to define its aesthetic.

The design of the card emphasizes the high-rarity appeal characteristic of the Hidden Arsenal series, featuring the distinct 'Secret Rare' foiling process. While the artwork depicts a formidable crystalline warrior, its mechanical identity within the game is defined by its ability to banish Gem-Knight monsters to boost its attack power, reflecting a high-risk, high-reward strategy that has remained a staple in niche competitive rogue decks for years.

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Other printings

Others named Gem-Knight Ruby

Same name, different printings and different cards — these sources have no shared id tying a reprint to its original.

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About

About Gem-Knight Ruby

Gem-Knight Ruby is a card in the Yu-Gi-Oh! catalog on collecto.rs. Hidden Arsenal 5: Steelswarm Invasion HA05-EN019 • secret-rare. Catalog data is sourced from YGOProDeck. No collectors on collecto.rs publicly track this card yet — adding yours would make you the first.

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