# 2020 Magic: The Gathering Magic Online Promos #79947

> The 2020 Magic Online Promos release features this rare black instant, card number 79947, offering versatile graveyard control and life gain.

Canonical URL: https://supercatch.com/product/magic-the-gathering-magic-online-promos-ereboss-intervention-79947-promo

## Identity

- **Year**: 2020
- **Brand**: Magic: The Gathering
- **Set**: Magic Online Promos
- **Card Number**: 79947
- **Featured**: Erebos's Intervention
- **Game**: Magic: The Gathering
- **Rarity**: Rare
- **Mana cost**: {X}{B}
- **Type**: Instant
- **Color**: B
- **Language**: English
- **Material**: Card Stock
- **Finish**: Normal

## Description

Erebos's Intervention is a black instant card from the 2020 Magic Online Promos set, identified by card number 79947. Designed as a flexible removal tool, this rare card allows players to target a creature and give it -X/-X until end of turn, or to exile up to twice X cards from graveyards. The mana cost is {X}{B}, resulting in a mana value of 1, which makes it an efficient option for decks focused on the black color identity. Mathias Kollros is the artist for this 2020 Magic Online Promo card. The card's rules text allows you to choose between targeting a creature for -X/-X and gaining X life, or exiling up to twice X target cards from graveyards. Collectors of Magic: The Gathering trading card game cards often appreciate the unique nature of promo releases, which are distributed through specific digital platforms and physical events. The card's versatility in targeting creatures or manipulating graveyard resources makes it a notable addition to any collection of Black mana cards. Whether for gameplay strategy or set completion, Erebos's Intervention offers a distinct experience within the Magic Online Promos series.

## FAQ

### What is the mana cost of Erebos's Intervention?

The mana cost is {X}{B}, which requires one black mana and any amount of generic mana represented by X.

### What are the effects of Erebos's Intervention?

This instant card allows you to target a creature to give it -X/-X until end of turn, or to exile up to twice X target cards from graveyards.

### What set does card number 79947 belong to?

Card number 79947 is part of the 2020 Magic Online Promos set, classified as a rare card in the Magic: The Gathering trading card game.

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Editorial content updated: 2026-10-10.

Site deployment: 2025-11-29.