SOS #218
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Quandrix, the Proof
Legendary Creature · Elder DragonCascade, Flying, Trample
TCGplayer market · SOS #218 nonfoil
$0.96 −20.0% −$0.24, 7 days
- 1-year range
- 30 days
- −19.3%
- EDHREC rank
- #6,877 Up 252 in 30 days
- Best buylist
Buy SOS #218 nonfoil
TCGplayer, $0.96 (opens in a new tab) Card Kingdom, (opens in a new tab) Mana Pool, (opens in a new tab) eBay, Check price (opens in a new tab)
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Quandrix, the Proof Price Summary
The benchmark price (cheapest playable nonfoil) is $0.96, down 20.0% over 7 days, down 19.3% over 30 days, down 43.2% over 90 days.
Quandrix, the Proof Price History
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Reprints in this period
Quandrix, the Proof price history chart, default range 3 months. currently $0.96.
Where We’ve Written About Quandrix, the Proof
Where to Buy and Sell Quandrix, the Proof
Every market we track for SOS #218 nonfoil on one line. The gray band is what you give up selling to a store instead of buying at market.
Quandrix, the Proof in Sealed Products
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Quandrix, the Proof Printings & Prices
Quandrix, the Proof has 3 tracked printings across 2 sets, in nonfoil and foil finishes, including promo pack and borderless treatments.
PSOS #218p
SOS #286
Sell Quandrix, the Proof: Buylist Offers
| Buyer | Printing | Finish | Cash offer | Market | Spread to market |
|---|---|---|---|---|---|
| Card Kingdom | SOS #286 | Foil | |||
| Card Kingdom | PSOS #218p | Foil | |||
| CoolStuffInc | SOS #218 | Foil | |||
| Card Kingdom | SOS #286 | Nonfoil | |||
| Card Kingdom | SOS #218 | Foil | |||
| CoolStuffInc | SOS #218 | Nonfoil | |||
| Card Kingdom | PSOS #218p | Nonfoil | |||
| Card Kingdom | SOS #218 | Nonfoil |
Quandrix, the Proof Rules Text & Legality
Quandrix, the Proof
Flying, trample
Cascade (When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom in a random order.)
Instant and sorcery spells you cast from your hand have cascade.
Quandrix, the Proof is legal in Standard, Pioneer, Modern, Legacy and Commander, and not legal in Pauper.
- AlchemyLegal
- BrawlLegal
- CommanderLegal
- Competitive BrawlLegal
- Duel CommanderLegal
- Future StandardLegal
- GladiatorLegal
- HistoricLegal
- LegacyLegal
- ModernLegal
- OathbreakerLegal
- PioneerLegal
- StandardLegal
- Standard BrawlLegal
- TimelessLegal
- VintageLegal
- Old SchoolNot legal
- PauperNot legal
- Pauper CommanderNot legal
- Penny DreadfulNot legal
- PreDHNot legal
- PremodernNot legal
Quandrix, the Proof Rulings
- Mar 20, 2026
A spell's mana value is determined only by its mana cost. Ignore any alternative costs, additional costs, cost increases, or cost reductions.
- Mar 20, 2026
Cascade triggers when you cast the spell, meaning that it resolves before that spell. If you end up casting the exiled card, it will go on the stack above the spell with cascade.
- Mar 20, 2026
If a spell with cascade is countered, the cascade ability will still resolve normally.
- Mar 20, 2026
If the card has {X} in its mana cost, you must choose 0 as the value of X when casting it without paying its mana cost.
- Mar 20, 2026
If you cast a card "without paying its mana cost," you can't choose to cast it for any alternative costs. You can, however, pay additional costs. If the card has any mandatory additional costs, you must pay those to cast the card.
Reprints & Reprint Risk
Quandrix, the Proof has been reprinted 4 times. The Secrets of Strixhaven reprint cut the price 62% in 30 days.
- Apr 24, 2026Secrets of Strixhaven · foilSOS #218
- Apr 24, 2026Secrets of StrixhavenSOS #218
- Apr 24, 2026Secrets of Strixhaven · Borderless, foilSOS #286
- Apr 24, 2026Secrets of Strixhaven · BorderlessSOS #286
Quandrix, the Proof in Commander
Quandrix, the Proof is the #6,877 most-played card on EDHREC, up 252 places over the last 30 days.
#6,877
EDHREC rank
across all Commander decks Up 252 in 30 days
across all Commander decks Up 252 in 30 days
Quandrix, the Proof FAQ
How much is Quandrix, the Proof worth?
Quandrix, the Proof is worth about $0.96 for its cheapest playable printing as of Nov 8, 2026.
Is Quandrix, the Proof legal in Commander?
Yes. Quandrix, the Proof is legal in Commander. It is also legal in Standard, Pioneer, Modern and Legacy.
Has Quandrix, the Proof been reprinted?
Yes. Quandrix, the Proof has been reprinted 4 times, with 3 printings tracked on The Index.
Why is Quandrix, the Proof cheap?
Quandrix, the Proof trades at about $0.96; 4 reprints keep supply plentiful, and Commander demand is modest (#6,877 on EDHREC).