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MTG Cards Sets Formats Artists Leaderboard Games
Quandrix, the Proof image 1 Quandrix, the Proof image 2 Quandrix, the Proof image 3
Secrets of Strixhaven (SOS | #218 | 2026-04-24)
Most recent print shown first. Tap image to zoom.

Quandrix, the Proof

4GU
Legendary Creature — Elder Dragon
Artist: Lucas Graciano
All artists: Lucas Graciano , Anastasia Ovchinnikova

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.

6/6
$3.19 cheapest print

Prices

Set # Treatment Finish Price (USD)
Secrets of Strixhaven 218 Regular Nonfoil $3.19
Secrets of Strixhaven 218 Regular Foil $5.12
Secrets of Strixhaven 286 Borderless Nonfoil $10.77
Secrets of Strixhaven 286 Borderless Foil $14.30

Price History

View eBay Sold Listings See real sold prices for Quandrix, the Proof

Printings (3)

Quandrix, the Proof — Secrets of Strixhaven
Secrets of Strixhaven
#218 Mythic $3.19
Regular Nonfoil Foil
Lucas Graciano
Quandrix, the Proof — Secrets of Strixhaven Promos
Secrets of Strixhaven Promos
#218p Mythic —
Promo Nonfoil Foil
Lucas Graciano
Quandrix, the Proof — Secrets of Strixhaven
Secrets of Strixhaven
#286 Mythic $10.77
Borderless Nonfoil Foil
Anastasia Ovchinnikova

Rulings

2026-03-20 wotc
You exile the cards face up. All players will be able to see them.
2026-03-20 wotc
When the cascade ability resolves, you must exile cards. The only optional part of the ability is whether or not you cast the last card exiled.
2026-03-20 wotc
The mana value of a split card is determined by the combined mana cost of its two halves. If cascade allows you to cast a split card, you may cast either half (as long as the resulting spell would have lesser mana value than the spell with cascade) but not both halves.
2026-03-20 wotc
Not only do you stop exiling cards if you exile a nonland card with lesser mana value than the spell with cascade, but the resulting spell you cast must also have lesser mana value.
2026-03-20 wotc
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.
2026-03-20 wotc
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.
2026-03-20 wotc
If a spell with cascade is countered, the cascade ability will still resolve normally.
2026-03-20 wotc
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.
2026-03-20 wotc
A spell's mana value is determined only by its mana cost. Ignore any alternative costs, additional costs, cost increases, or cost reductions.

Format Legality

Tlr Not Legal
Standard Legal
Future Not Legal
Historic Legal
Timeless Legal
Gladiator Legal
Pioneer Legal
Modern Legal
Legacy Legal
Pauper Not Legal
Vintage Legal
Penny Not Legal
Commander Legal
Oathbreaker Legal
Standardbrawl Legal
Brawl Legal
Alchemy Legal
Paupercommander Not Legal
Duel Legal
Oldschool Not Legal
Premodern Not Legal
Predh Not Legal