# 2021 Magic: The Gathering Magic Online Promos #90066

> The 2021 Magic Online Promos release featuring the foil card Author of Shadows (90066), a potent Shade Warlock designed for strategic gameplay.

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## Identity

- **Year**: 2021
- **Manufacturer brand**: Magic: The Gathering
- **Set / series**: Magic Online Promos
- **Card number**: #90066
- **Product type**: TCG_CARD

## Description

Designed as a Shade Warlock, this card features a mana cost of four generic mana and one black mana, resulting in a mana value of five. Its design emphasizes the creature's formidable presence, allowing collectors to engage with a powerful tool for graveyard manipulation. As a key component of the Magic: The Gathering trading card game, Author of Shadows offers a distinct mechanical identity. When this creature enters the battlefield, it exiles all opponents' graveyards, providing immediate board control. The card’s ability allows you to choose a nonland card from those exiled and cast it for as long as it remains exiled, with the added benefit of spending mana as though it were any color. This versatility makes it a compelling addition for collectors seeking to understand the evolving mechanics of the game. By focusing on the card's identity as a foil Rare from the PRM set code, collectors can appreciate the artistic and mechanical nuances Alex Brock brought to this design. Whether you are building a collection of promotional artifacts or studying the history of black mana strategies, this card represents a significant piece of the 2021 promotional landscape.

## FAQ

### What is the card number for Author of Shadows in Magic Online Promos?

Author of Shadows is designated as card number 90066 within the Magic Online Promos set. This identifier helps collectors catalog and trade this promotional release accurately.

### What abilities does the Author of Shadows card have?

When Author of Shadows enters the battlefield, it exiles all opponents' graveyards. You may then choose one nonland card from among them and cast it for as long as it remains exiled, spending mana as though it were of any color.

### Is Author of Shadows a foil card in the Magic Online Promos set?

Yes, the version listed in the Magic Online Promos collection is a Rare foil card. The foil treatment adds a distinct visual finish that collectors often seek when completing set subsets.

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Last verified: 2025-11-29.