# 2021 Magic: The Gathering Adventures in the Forgotten Realms Promos #239s

> The 239s foil promo version of Xanathar, Guild Kingpin, a Mythic rare Beholder from Magic: The Gathering's 2021 Adventures in the Forgotten Realms Promos.

Canonical URL: https://supercatch.com/product/magic-the-gathering-adventures-in-the-forgotten-realms-promos-xanathar-guild-kingpin-239s-foil-promo-mythic-rare

## Identity

- **Year**: 2021
- **Brand**: Magic: The Gathering
- **Set**: Adventures in the Forgotten Realms Promos
- **Card Number**: 239s
- **Featured**: Xanathar, Guild Kingpin
- **Game**: Magic: The Gathering
- **Rarity**: Mythic Rare
- **Mana cost**: {4}{U}{B}
- **Type**: Legendary Creature — Beholder
- **Power / Toughness**: 5 / 6
- **Color**: B, U
- **Language**: English
- **Material**: Card Stock
- **Finish**: Foil

## Description

The 239s foil promo is a Mythic rare card from Magic: The Gathering's 2021 Adventures in the Forgotten Realms Promos set. This Legendary Creature — Beholder carries the mana cost of {4}{U}{B} and possesses a power and toughness of 5/6. The card number 239s identifies this promotional release within the broader Adventures in the Forgotten Realms ecosystem. Artist Kieran Yanner illustrated this 2021 Adventures in the Forgotten Realms Promos card, which features a foil finish and Mythic Rare status. Xanathar, Guild Kingpin functions as a formidable control piece with potent abilities. At the beginning of your upkeep, you choose a target opponent. Until end of turn, that player cannot cast spells. You may look at the top card of their library any time and play it. Additionally, you may spend mana as though it were mana of any color to cast spells this way. This combination of disruption and resource advantage makes the card a strategic asset in gameplay. Released in 2021 as part of the Adventures in the Forgotten Realms Promos set, this card depicts Xanathar, Guild Kingpin. Card number 239s is a foil Mythic Rare promo from the Adventures in the Forgotten Realms Promos set. Xanathar, Guild Kingpin is a Legendary Creature — Beholder with a mana cost of {4}{U}{B} and power/toughness of 5/6. The card's design and mechanics reflect the intricate world of Zakhara, where Xanathar rules the Thieves' Guild. This card is a foil Mythic Rare promo from the Adventures in the Forgotten Realms Promos set. Collectors appreciate the attention to detail in the artwork and the strategic depth of the card's abilities.

## FAQ

### What is the mana cost of Xanathar, Guild Kingpin?

The mana cost for Xanathar, Guild Kingpin is {4}{U}{B}, requiring four generic mana, one blue mana, and one black mana to cast. This results in a mana value of 6.

### What abilities does Xanathar, Guild Kingpin have?

At the beginning of your upkeep, you choose a target opponent. Until end of turn, that player cannot cast spells, you may look at the top card of their library, play it, and spend mana as though it were any color to cast spells.

### Is the 239s promo a Mythic rare card?

Yes, the 239s promo version of Xanathar, Guild Kingpin is classified as a Mythic rare card in the Adventures in the Forgotten Realms Promos set.

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Editorial content updated: 2026-09-30.

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