# 2021 Magic: The Gathering Magic Online Promos #90058

> This 2021 Magic Online Promos listing features the Keen Duelist foil promo card, card number 90058 in the Magic: The Gathering trading card game.

Canonical URL: https://supercatch.com/product/magic-the-gathering-magic-online-promos-keen-duelist-90058-foil-promo

## Identity

- **Year**: 2021
- **Brand**: Magic: The Gathering
- **Set**: Magic Online Promos
- **Card Number**: 90058
- **Featured**: Keen Duelist
- **Game**: Magic: The Gathering
- **Rarity**: Rare
- **Mana cost**: {1}{B}
- **Type**: Creature — Human Wizard
- **Power / Toughness**: 2 / 2
- **Color**: B
- **Language**: English
- **Material**: Card Stock
- **Finish**: Foil

## Description

The 2021 Magic Online Promos Keen Duelist (#90058) is a Rare foil promo card from the Magic: The Gathering trading card game. Designed by Lindsey Look, this Human Wizard creature has a mana cost of {1}{B} and a mana value of 2. It features 2 power and 2 toughness. The card includes a unique upkeep effect where you and a target opponent reveal the top card of your library, losing life equal to the other's revealed card mana value, then placing both cards into your respective hands. This product represents a collectible piece for TCG enthusiasts.

## FAQ

### What is the mana cost of Keen Duelist?

The mana cost for Keen Duelist is {1}{B}, indicating one generic mana and one black mana.

### Is Keen Duelist a foil card?

Yes, the 2021 Magic Online Promos version of Keen Duelist (#90058) is a Rare foil promo card.

### Who illustrated the Keen Duelist card?

The artwork for this Magic: The Gathering card was created by artist Lindsey Look.

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Editorial content updated: 2026-11-05.

Site deployment: 2025-11-29.