# 2021 Magic: The Gathering Magic Online Promos #91291

> The 2021 Magic Online Promos Magmatic Sinkhole foil card (#91291) is a rare Instant featuring the Delve mechanic, designed by Mark Behm for TCG collectors.

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

## Identity

- **Year**: 2021
- **Manufacturer brand**: Magic: The Gathering
- **Set / series**: Magic Online Promos
- **Card number**: #91291
- **Product type**: TCG_CARD

## Description

Magmatic Sinkhole, identified by card number 91291 in the 2021 Magic Online Promos series, is a sought-after piece for collectors of the Magic: The Gathering trading card game. This release features a striking foil finish that enhances its visual appeal, making it a distinctive addition to any collection. Designed by artist Mark Behm, the card embodies the intricate design language characteristic of the Magic Online Promos subset. As a rare Instant, it offers strategic depth through its Delve mechanic, allowing players to exile cards from their graveyard to reduce casting costs. This unique gameplay element adds layers of interest for those who appreciate both the aesthetic and mechanical aspects of the game. For investors and hobbyists alike, owning a piece of this promotional set represents a connection to a pivotal era in TCG history. The combination of rarity, artistic merit, and functional utility makes Magmatic Sinkhole a valuable asset for completing specialized collections or expanding a curated library of premium cards.

## FAQ

### What is the card number for Magmatic Sinkhole in the Magic Online Promos set?

The card number for Magmatic Sinkhole in the 2021 Magic Online Promos series is 91291. This identifier helps collectors catalog and organize their acquisitions within the specific promotional subset.

### What mechanic does Magmatic Sinkhole feature?

Magmatic Sinkhole features the Delve mechanic, which allows players to exile cards from their graveyard while casting the spell to pay for its generic mana cost. This adds a strategic layer to the card's gameplay.

### Who is the artist for the Magmatic Sinkhole promo card?

The artist for the Magmatic Sinkhole promo card is Mark Behm. His artwork contributes to the visual identity of the 2021 Magic Online Promos release.

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Last verified: 2025-11-29.