Professor Onyx
Illustrated by Kieran Yanner
Card details
- Mana cost
- 6
- Type
- Legendary Planeswalker — Liliana
- Rarity
- Legendary, Planeswalker
Oracle text
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.
Professor Onyx price & value
| Condition | Market | Low |
|---|---|---|
| Near Mint | $5.26 | $5.11 |
| Lightly Played | $4.35 | $5.69 |
| Moderately Played | $4.86 | $6.24 |
Snapshot as of 2026-09-12. Live prices & recent sales load below.