Marketplace

Reference artwork · details may differ from this copy

PROMO

About This Card

Whir of Invention is a Rare foil Instant card from the Aether Revolt Promos set, identified by set code PAER and card number 49s. The card has a mana cost of {X}{U}{U}{U}, a mana value of 3, and is colored U with a color identity of U. It features a normal layout and artwork by Christine Choi.

Whir of Invention

2017 • Magic: The Gathering • Aether Revolt Promos

2017 Magic: The Gathering Aether Revolt Promos

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Market Value

Raw/Ungraded Market: $18.77

Updated 7 days ago

Based on TCGplayer Market (reference)Last Updated Nov 4, 2026Check Price Guide

Market & Price History

Condition	Value	Source	Trend	Price Details
	$18.77Nov 4, 2026	Guide Estimate	0%
Based on TCGplayer Market (reference) Estimate: $18.77, based on Guide Estimate. Source date not availableCaptured Nov 4, 2026 Guide Estimate: $18.77. Evidence date not available. Few comparable observations are available, so this estimate may be less reliable. Over the last 30 days, stored prices ranged from $18.77 to $18.77 across 3 capture days. Change between Oct 21, 2026 and Nov 4, 2026: 0%. Compares the same source, grade and signed status. Capture days are not completed-sale counts.Recorded Nov 4, 2026

$18.77Nov 4, 2026
Source
Guide Estimate
Trend
0%
Price Details
Based on TCGplayer Market (reference)
Estimate: $18.77, based on Guide Estimate.
Source date not availableCaptured Nov 4, 2026
Guide Estimate: $18.77. Evidence date not available.
Few comparable observations are available, so this estimate may be less reliable.
Over the last 30 days, stored prices ranged from $18.77 to $18.77 across 3 capture days. Change between Oct 21, 2026 and Nov 4, 2026: 0%. Compares the same source, grade and signed status. Capture days are not completed-sale counts.Recorded Nov 4, 2026

30-day Price History

Raw / Ungraded

TCGplayer Market (reference) · Guide Estimate evidence · captured Nov 4, 2026

Each point is the last stored observation that day for this printing, condition, grader, autograph status and source. Gaps mean no observation; guide estimates and asking prices are not completed sales.

Product Overview

Description

Whir of Invention is a Magic: The Gathering trading card game card. It is a Rare foil Instant from the Aether Revolt Promos set (PAER). The card number is 49s. It has a mana cost of {X}{U}{U}{U}, a mana value of 3, and is colored U. The color identity is U. The layout is normal. The artist is Christine Choi. It is a promo card.

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Product Specs

Card Details

The catalog profile below summarizes the card identity, featured subject, and notable collectible traits.

Catalog Profile

The core identity of the card within the set.

Year

2017

Brand

Magic: The Gathering

Series

Aether Revolt Promos

Card Number

#49s

Featured Subject

The subject, team, league, and sport context tied to this card.

Featured

Whir of Invention

Game

Magic: The Gathering

TCG Attributes

Rarity, print treatment, and game-specific stats for this card.

Rarity

Rare

Artist

Christine Choi

Material

Card Stock

Language

English

Finish

Foil

Mana cost

{X}{U}{U}{U}

Type

Instant

Color

Card Text

Abilities, attacks, oracle text, and flavor text printed on the card.

Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for {1}.) Search your library for an artifact card with mana value X or less, put it onto the battlefield, then shuffle.