TCGenius.ai
Gem-Knight Sardonyx
EARTH · Pyro / Gemini Effect Monster · Level 4 · ATK 1800 / DEF 900
This card is treated as a Normal Monster while face-up on the field or in the Graveyard. While this card is face-up on the field, you can Normal Summon it to have it become an Effect Monster with this effect.
● When this card destroys an opponent's monster by battle and sends it to the Graveyard: You can add 1 "Gem-Knight" card from your Deck to your hand.
Is it legal?
TCGUnlimited (3)
OCGUnlimited (3)
Master DuelUnlimited (3)
Rarity: Normal (N)
Genesys0 points
Price
About $0.36–$0.43 across printings and stores (as of Oct 9, 2026). See listings on TCGplayer · eBay · Cardmarket (EU)
Price history & alerts
Printings
| Set | Code | Rarity |
|---|---|---|
| Duel Terminal 7a | DT07-EN014 | Duel Terminal Normal Parallel Rare |
| Hidden Arsenal 7: Knight of Stars | HA07-EN001 | Super Rare |
Build a deck around Gem-Knight Sardonyx
Genny reads every card ever printed, builds a legal deck around this one, grades it against the current meta, and the simulator can test it hundreds of times.
Build with this card