# 2021 Magic: The Gathering Magic Online Promos #91291

> The 2021 Magic: The Gathering Magic Online Promos card Magmatic Sinkhole (#91291) is a Rare Instant featuring Delve and a powerful 5-damage effect.

Canonical URL: https://supercatch.com/product/magic-the-gathering-magic-online-promos-magmatic-sinkhole-91291-promo

## Identity

- **Year**: 2021
- **Brand**: Magic: The Gathering
- **Set**: Magic Online Promos
- **Card Number**: 91291
- **Featured**: Magmatic Sinkhole
- **Game**: Magic: The Gathering
- **Rarity**: Rare
- **Mana cost**: {5}{R}
- **Type**: Instant
- **Color**: R
- **Language**: English
- **Material**: Card Stock
- **Finish**: Normal

## Description

Magmatic Sinkhole (Card #91291) is a Rare Instant from the 2021 Magic Online Promos set, designed by Mark Behm. This card requires a mana cost of {5}{R} and has a mana value of 6. Its primary effect deals 5 damage to a target creature or planeswalker. The card features the Delve keyword ability, which allows players to exile cards from their graveyard to help pay for the spell's generic mana costs. Collectors value this promo card for its unique design and gameplay utility within the Magic: The Gathering trading card game. The card number 91291 places it distinctly within the promotional releases of 2021. Understanding the mechanics of Delve and the strategic impact of dealing 5 damage is key for enthusiasts of the game. The card's identity is defined by its set, rarity, and rules text. It stands as a notable piece for those interested in the 2021 promotional releases of Magic: The Gathering. The artwork by Mark Behm adds to its appeal as a collectible item. This card is an instant, meaning it can be played during any player's turn when they have priority. Its red color identity aligns it with aggressive and direct damage strategies in the game. The card's text box includes flavor text that adds narrative depth to the card's theme. The 2021 Magic Online Promos set includes Magmatic Sinkhole, card number 91291. Magmatic Sinkhole is a key card for those who appreciate the intersection of strategic gameplay and collectible design.

## FAQ

### What is the mana cost of Magmatic Sinkhole?

The mana cost for Magmatic Sinkhole is {5}{R}, requiring five generic mana and one red mana. This gives the card a total mana value of 6.

### What does the Delve ability do?

Delve allows you to exile cards from your graveyard as you cast Magmatic Sinkhole. Each card exiled this way pays for {1} of the spell's total cost.

### Who is the artist for this card?

Mark Behm is the artist credited with illustrating Magmatic Sinkhole for the 2021 Magic Online Promos set.

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Editorial content updated: 2026-10-06.

Site deployment: 2025-11-29.