Professor Onyx Proxy
Legendary Planeswalker — Liliana · Strixhaven: School of Mages Promos · mythic
$0.40/card in a full imported deck, $2.00 in rainbow foil. S33 German Black Core playtest card — not for sanctioned play.
Real-card format legality
Proxies themselves are never sanctioned-legal — this is the real card's status, useful for Rule-0 talks. Proxy legality, explained
Printings (5)
We match the exact printing's artwork from Scryfall — pick any of these in the singles builder.
| Set | # | Released | Real price |
|---|---|---|---|
| Duskmourn: House of Horror Commander | 153 | 2024-09-27 | $5.54 |
| Strixhaven: School of Mages | 83 | 2021-04-23 | $7.11 |
| Strixhaven: School of Mages Promos | 83p | 2021-04-23 | $5.39 |
| Strixhaven: School of Mages Promos | 83s | 2021-04-23 | $17.43 |
| Strixhaven: School of Mages | 276 | 2021-04-23 | $12.41 |
Frequently asked
How much does a real Professor Onyx cost?
Around $5.43 on the open market for the Strixhaven: School of Mages Promos printing (price snapshot 2026-07-24; live prices move daily).
How much does a Professor Onyx proxy cost?
$0.50 as a single on an 18-card sheet, $0.40 when it's part of a full imported deck, or $2.00 in rainbow foil — all on S33 German Black Core cardstock, shipped from New York.
Can I play a Professor Onyx proxy?
As a playtest card, yes — in casual Commander pods, kitchen-table games, and proxy-friendly events, with your playgroup's OK. Proxies are not legal in sanctioned tournaments, and we print them for personal, non-sanctioned play only.