# 2020 Magic: The Gathering Aether Revolt Promos #49p

> The Whir of Invention foil card (49p) from the 2020 Magic: The Gathering Aether Revolt Promos set, featuring Christine Choi's art and a powerful artifact-searching effect.

Canonical URL: https://supercatch.com/product/magic-the-gathering-aether-revolt-promos-whir-of-invention-49p-foil

## Identity

- **Year**: 2020
- **Manufacturer brand**: Magic: The Gathering
- **Set / series**: Aether Revolt Promos
- **Card number**: #49p
- **Product type**: TCG_CARD

## Description

The Whir of Invention foil card (49p) stands as a distinctive piece within the 2020 Magic: The Gathering Aether Revolt Promos set. Designed by Christine Choi, this rare instant card utilizes a unique blue mana cost and the improvise mechanic, allowing players to tap artifacts to reduce casting costs. Collectors often seek this card number for its visual appeal and its role in popular artifact-centric deck archetypes. The foil treatment adds a layer of prestige, making it a favorite among those who appreciate both the gameplay utility and the aesthetic presentation of Magic cards. Including this card in a collection offers a tangible connection to one of Magic's most innovative sets, celebrated for its steampunk-inspired themes and mechanical depth. Whether you are building a themed collection or looking to enhance your trading card game library, the Whir of Invention foil card represents a key component of the Aether Revolt era. Its enduring popularity ensures it remains a relevant and desirable addition for serious Magic: The Gathering enthusiasts.

## FAQ

### What is the Whir of Invention card in Magic: The Gathering?

Whir of Invention is a rare blue instant card from the 2020 Aether Revolt Promos set. It allows players to search their library for an artifact card with mana value X or less and put it onto the battlefield.

### What does the improvise mechanic do on this card?

The improvise mechanic lets you tap any number of artifacts you control after activating mana abilities. Each tapped artifact pays for one generic mana ({1}), reducing the total cost to cast the spell.

### Who illustrated the Whir of Invention foil card?

The artwork for the Whir of Invention card in the Aether Revolt Promos set was created by illustrator Christine Choi.

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Last verified: 2025-11-29.