# 2021 Magic: The Gathering Strixhaven: School of Mages Promos #83p

> Professor Onyx is a Magic: The Gathering trading card game card from the Strixhaven: School of Mages Promos set (code PSTX). It is a Mythic Rare promo card with card number 83p. The card is a Legendary Planeswalker — Liliana with a mana cost of {4}{B}{B}, a mana value of 6, and colors B. It has a loyalty of 5 and a normal layout. The artist is Kieran Yanner.

Canonical URL: https://supercatch.com/product/magic-the-gathering-strixhaven-school-of-mages-promos-professor-onyx-83p-promo-mythic-rare

## Identity

- **Year**: 2021
- **Brand**: Magic: The Gathering
- **Set**: Strixhaven: School of Mages Promos
- **Card Number**: 83p
- **Featured**: Professor Onyx
- **Game**: Magic: The Gathering
- **Rarity**: Mythic Rare
- **Mana cost**: {4}{B}{B}
- **Type**: Legendary Planeswalker — Liliana
- **Loyalty**: 5
- **Color**: B
- **Language**: English
- **Material**: Card Stock
- **Finish**: Normal

## Description

Professor Onyx is a Magic: The Gathering trading card game card from the Strixhaven: School of Mages Promos set (code PSTX). It is a Mythic Rare promo card with card number 83p. The card is a Legendary Planeswalker — Liliana with a mana cost of {4}{B}{B}, a mana value of 6, and colors B. It has a loyalty of 5 and a normal layout. The artist is Kieran Yanner.

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Editorial content updated: 2026-10-11.

Site deployment: 2025-11-29.