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Gem-Knight Aquamarine
EARTH · Aqua / Fusion Effect Monster · Level 6 · ATK 1400 / DEF 2600
"Gem-Knight Sapphire" + 1 "Gem-Knight" monster
Must first be Fusion Summoned with the above Fusion Material Monsters. If this card attacks, it is changed to Defense Position at the end of the Battle Phase. When this card is sent from the field to the Graveyard: Target 1 card your opponent controls; return that target to the hand.
Is it legal?
TCGUnlimited (3)
OCGUnlimited (3)
Master DuelUnlimited (3)
Rarity: Super Rare (SR)
Genesys0 points
Price
About $0.15–$0.21 across printings and stores (as of Oct 9, 2026). See listings on TCGplayer · eBay · Cardmarket (EU)
Price history & alerts
Printings
| Set | Code | Rarity |
|---|---|---|
| Battles of Legend: Monster Mayhem | BLMM-EN137 | Ultra Rare |
| Duel Terminal 5a | DT05-EN035 | Duel Terminal Super Parallel Rare |
| Hidden Arsenal 5: Steelswarm Invasion | HA05-EN020 | Secret Rare |
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