
Quandrix, the Proof: Legendary Creature - Elder Dragon, Secrets of Strixhaven. MTG card printings, market prices, rulings, and format legality on Mana Grove.
Build around this card with Grover
Quandrix, the Proof is a Magic: The Gathering card, a mythic rare blue and green legendary creature from Secrets of Strixhaven (SOS), an expansion set released in April 2026. It is collector number 218 in that set, with art by Lucas Graciano. It costs {4}{G}{U} (four generic, one blue and one green mana) to cast, for a mana value of 6. It is a 6/6 creature. Its colour identity is blue and green. It is legal in Standard, Pioneer, Modern, Legacy, Vintage, Commander, Duel Commander, Oathbreaker, Brawl, Standard Brawl, Historic, Timeless, Alchemy and Gladiator. It has been printed in 2 sets. It can be your commander. The latest aggregated market price for this printing is $1.29 (normal finish, as of 2026-11-02).
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.
Latest aggregated market price for the normal finish of this printing: $1.29 (as of 2026-11-02).
The figure covers this printing only; other printings carry their own price on their own page.
Legality of Quandrix, the Proof by format. Formats in which it is not legal are not listed.
| Standard | Legal |
|---|---|
| Pioneer | Legal |
| Modern | Legal |
| Legacy | Legal |
| Vintage | Legal |
| Commander | Legal |
| Duel Commander | Legal |
| Oathbreaker | Legal |
| Brawl | Legal |
| Standard Brawl | Legal |
| Historic | Legal |
| Timeless | Legal |
| Alchemy | Legal |
| Gladiator | Legal |
Quandrix, the Proof has been printed in 2 sets. The other printings are listed newest first, with the rarity and release year of each.
| Printing | Rarity | Year |
|---|---|---|
| Secrets of Strixhaven Promos (PSOS) #218p | Mythic | 2026 |
| Secrets of Strixhaven (SOS) #286 | Mythic | 2026 |
The 8 most recent official rulings for Quandrix, the Proof, newest first.
Other creature cards with a blue and green colour identity, ranked by how often they appear in Commander decks.
These guides mention Quandrix, the Proof.