# 2013 Magic: The Gathering Magic Online Promos #31433

> The 2013 Tendrils of Agony foil card from the Magic Online Promos set, an uncommon sorcery featuring the powerful Storm mechanic.

Canonical URL: https://supercatch.com/product/magic-the-gathering-magic-online-promos-tendrils-of-agony-31433-foil

## Identity

- **Year**: 2013
- **Manufacturer brand**: Magic: The Gathering
- **Set / series**: Magic Online Promos
- **Card number**: #31433
- **Product type**: TCG_CARD

## Description

The 2013 Tendrils of Agony foil card from the Magic Online Promos set offers a distinctive piece of Magic: The Gathering history for dedicated collectors. Designed as an uncommon sorcery, this card carries the number 31433 within the PRM set code, distinguishing it in the catalog. The foil treatment adds a shimmering finish that appeals to those who value visual variety in their collections. Collectors of trading card games often seek out promo releases for their unique distribution and historical context. Tendrils of Agony is well-known for its Storm mechanic, which allows the spell to be copied based on other spells cast in the turn, creating powerful gameplay potential. While the Magic Online Promos set is not tied to a specific physical expansion, it represents a specific era of digital and promotional distribution in 2013. Whether you are building a thematic collection of black mana spells or focusing on the 2013 Magic Online Promos series, this card serves as a notable entry point. Its uncommon rarity makes it accessible while still holding significance for fans of the game's strategic depth. For investors and hobbyists alike, understanding the specific attributes of each release is key. This card’s identity is firmly rooted in the 2013 Magic Online Promos series, offering a tangible connection to that year's collector ecosystem.

## FAQ

### What set is the Tendrils of Agony foil card from?

This card is part of the 2013 Magic Online Promos set, identified by the PRM set code and card number 31433. It was released as a promotional item rather than through standard booster packs.

### What is the Storm mechanic on this card?

Storm is a keyword ability that causes the spell to be copied for each other spell cast before it during the turn. Each copy can have new targets chosen by the player casting it.

### Is the Tendrils of Agony promo card rare?

Within the Magic Online Promos set, this card is classified as uncommon. While not the highest rarity, promo cards are distributed differently than standard set cards, making them unique to collectors.

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Last verified: 2025-11-29.