# 2020 Magic: The Gathering Magic Online Promos #79957

> The 2020 Magic Online Promos foil promo card Thassa's Intervention (Card #79957). This rare Magic: The Gathering instant features artwork by Zack Stella and a foil finish.

Canonical URL: https://supercatch.com/product/magic-the-gathering-magic-online-promos-thassas-intervention-79957-foil-promo

## Identity

- **Year**: 2020
- **Brand**: Magic: The Gathering
- **Set**: Magic Online Promos
- **Card Number**: 79957
- **Featured**: Thassa's Intervention
- **Game**: Magic: The Gathering
- **Rarity**: Rare
- **Mana cost**: {X}{U}{U}
- **Type**: Instant
- **Color**: U
- **Language**: English
- **Material**: Card Stock
- **Finish**: Foil

## Description

Thassa's Intervention is a 2020 Magic Online Promos card from the Magic: The Gathering trading card game, designated as card number 79957. Printed with a rare rarity and a foil finish, this instant card is identified by the set code PRM. The card's mana cost is {X}{U}{U}, resulting in a mana value of 2, and it belongs to the blue color identity. Illustrated by Zack Stella, the card features the Instant card type and is part of the Magic Online Promos series.

## FAQ

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

The mana cost for Thassa's Intervention is {X}{U}{U}, which gives it a mana value of 2. It is a blue instant card in the Magic: The Gathering trading card game.

### Who is the artist for this Magic card?

The artwork for Thassa's Intervention in the 2020 Magic Online Promos series was created by artist Zack Stella.

### What set code is associated with this card?

This card carries the set code PRM, indicating its inclusion in the Magic Online Promos subset of Magic: The Gathering releases.

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Editorial content updated: 2026-11-01.

Site deployment: 2025-11-29.