Simulated holo effect, for illustration only.
Hidden Arsenal 7: Knight of Stars
Gem-Knight Sardonyx
- Expansion
- Hidden Arsenal 7: Knight of Stars
- Code
- HA07-EN001
- Rarity
- Super Rare
- Card type
- Monster · Pyro/Gemini/Effect
- Attribute
- EARTH
- Level
- 4
- ATK / DEF
- 1800 / 900
- Archetype
- Gem-
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.
Other printings
Price history
Ungraded cards
Condition: Near Mint (Mint and Near Mint)
- From
- —
- Price trend
- €0.38
- Average price 30 days
- €0.29
- Average price 7 days
- €0.36
- Average price 1 day
- €0.99
Oct 2, 2026 · €0.38
The dashed line is an estimate from the markets' rolling averages; recorded history starts on Oct 1, 2026.
Show data as a table
| Date | Price | Low |
|---|---|---|
| Oct 2, 2026 | €0.38 | — |
| Oct 1, 2026 | €0.40 | — |
| Sep 24, 2026 (estimate) | €0.36 | — |
| Sep 1, 2026 (estimate) | €0.29 | — |
Graded index
Certified cards, by grader and grade — kept apart from ungraded prices.
No graded prices
There aren't enough reliable offers for this graded card on external markets.