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  6. Siphone, Velmardia's Prodigy Spy

Force of Will · Attack on Velmardia · #AVL-041 R · Rare

Siphone, Velmardia's Prodigy Spy

Force of Will card price for Siphone, Velmardia's Prodigy Spy: $0.72 market, though the cheapest copy on sale asks $0.74, Normal printing, updated Oct 19, 2026. Full price history since Aug 7, 2026 below.

Market price · Normal · Oct 19, 2026
$0.72
0.0% this week · −11.1% in 30 days
Buy on eBay →
1 day0.0%
7 days0.0%
30 days−11.1%
90 days—
1 year—
All time−16.3%

Sellers right now

$0.74lowest listing$2.00highest
Market price$0.72
Mid listing$0.78
30-day avg$0.75

Market price is what a near-mint copy actually sold for. The cheapest listing is what a seller asks today — on thin markets the two differ a lot.

Where to buy

TCGplayer$0.72

One year

$0.7252-week low$0.8652-week high
In the range0%
All-time low$0.72
All-time high$0.86
First priceAug 7, 2026
Normal · market price
$0.71$0.77$0.82$0.87
$0.72
Aug 7Aug 31Sep 24Oct 19
TCGplayer market price · via tcgcsvtcgrate.com

Price story

Our price record for Siphone, Velmardia's Prodigy Spy begins in August 2026 at $0.86; the market price today is $0.72, down 16.3% since then. The highest price we have recorded is $0.86, 19.4% above today. Listings currently start at $0.74; over the last 30 days the market price averaged $0.75.

Printings

PrintingMarketLowHigh7d
Normal$0.72$0.74$2.000.0%

The card in play

Attribute
Fire
Card type
Resonator
Race
Human, Student, Warlock
Atk
600
Def
600
Total Cost
2
Flavor

"While infiltrated, I have discovered that Sylthmir is three meals away from revolution. Send me back. I'll finish the job."

Rules Text

[Quickcast]

Players cannot chase to this card or its abilities.

[Enter] >>> Target player banishes all resonators they control with counters on them, and all resonator tokens. Discard a card, then draw a card.

[Anathema] (This card has the following text in all zones as long as you control cards in your graveyard with four different card types.)

- Whenever this card attacks >>> Put a detention counter and/or a merit counter on target J/ruler.

Other printings of Siphone, Velmardia's Prodigy Spy

1 more · $0.72 – $2.78
All printings
Siphone, Velmardia's Prodigy Spy (Full Art) (AVL-041 R), Attack on Velmardia — Force of Will card price 0.0% 7d Siphone, Velmardia's Prodigy Spy (Full Art) Attack on Velmardia · #AVL-041 R $2.78

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