Gem-Knight Ruby
FusionFusion Monster· EARTH· Pyro· ★ Level 6
ATK
2500
DEF
1300
"Gem-Knight Garnet" + 1 "Gem-Knight" monster
Must first be Fusion Summoned with the above Fusion Material Monsters. Once per turn: You can Tribute 1 face-up "Gem-" monster; this card gains ATK equal to the Tributed monster's ATK on the field, until the End Phase. If this card attacks a Defense Position monster, inflict piercing Battle Damage to your opponent.
Archetype: Gem- (45 cards)
Made from
Market value
Cheapest printing
$0.24
USD, updated 15 October 2026. One price per printing, 1st Edition and Unlimited together.
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All printings (3)
| Set | Code | Rarity | Released | Price |
|---|---|---|---|---|
| Duel Terminal 5a | DT05-EN034 | Duel Terminal Ultra Parallel Rare | 29 May 2011 | - |
| Hidden Arsenal 5: Steelswarm Invasion | HA05-EN019 | Secret Rare | 1 December 2011 | - |
| Battles of Legend: Monster Mayhem | BLMM-EN136 | Ultra Rare | 28 August 2025 | - |