Gem-Knight Sardonyx

Gemini Effect Monster

Gem-Knight Sardonyx is a Gemini Effect Monster (EARTH/Pyro, Level 4) with 1800 ATK / 900 DEF. First printed in Duel Terminal 7a (2012).

Type: Gemini Monster
Attribute: EARTH
Monster type: Pyro
Level: 4
ATK / DEF: 1800 / 900
Archetype: Gem-
Banlist: Unlimited in the TCG, OCG, and Master Duel
TCG release: 2012-09-28
Printings: 2

Card text

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.

Approximate value

≈$0.34

A rough figure from recent listings (updated 2026-06-09), not a market value or official price. It varies a lot with printing, condition, edition, rarity, and grading. Check current listings below before buying or selling.

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Printings & rarities

All printings →

Set	Set code	Rarity	Release	Price*
Duel Terminal 7a	DT07-EN014	Duel Terminal Normal Parallel Rare	2012-09-28	$0.34
Hidden Arsenal 7: Knight of Stars	HA07-EN001	Super Rare	2013-04-26	$0.34

*Approximate, from recent marketplace listings, not market values.