Professor Onyx
- standard: Not Legal
- pioneer: Legal
- modern: Legal
- legacy: Legal
- vintage: Legal
- commander: Legal
- pauper: Not Legal
Market Price
Last updated Oct 22, 2026
Card Text & Details
Legendary Planeswalker — Liliana
Mana cost {4}{B}{B}
Magecraft — Whenever you cast or copy an instant or sorcery spell, each opponent loses 2 life and you gain 2 life. +1: You lose 1 life. Look at the top three cards of your library. Put one of them into your hand and the rest into your graveyard. −3: Each opponent sacrifices a creature with the greatest power among creatures that player controls. −8: Each opponent may discard a card. If they don't, they lose 3 life. Repeat this process six more times.
Illustrated by Kieran Yanner
About this card
Professor Onyx is a Legendary Planeswalker — Liliana from Strixhaven: School of Mages, a 2021 Magic: The Gathering set. It appears at collector number 83 of 383, carries a rarity of Mythic Rare, and comes in non-foil and foil printings. It is legal in Pioneer, Modern, Legacy, Vintage, and Commander. The artwork is by Kieran Yanner.
Available Listings
| Condition | Finish | Lang | Seller | Qty | Price | Action |
|---|---|---|---|---|---|---|
| NM — Near Mint | Non-Foil | ja | CardVault | 2 | $6.09 | |
| NM — Near Mint | Non-Foil | en | Slab & Sleeve | 4 | $5.34 | |
| LP — Lightly Played | Non-Foil | en | CardVault | 4 | $4.54 | |
| MP — Moderately Played | Non-Foil | en | Slab & Sleeve | 7 | $4.14 | |
| HP — Heavily Played | Non-Foil | en | CardVault | 1 | $3.16 |