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Aether Revolt (AER | #49 | 2017-01-20)
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Whir of Invention

XUUU
Instant
Artist: Christine Choi

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.

$5.27 cheapest print

Prices

Set # Treatment Finish Price (USD)
Aether Revolt 49 Regular Nonfoil $5.27
Aether Revolt 49 Regular Foil $12.80
Aether Revolt Promos 49p Promo Nonfoil $6.33
Aether Revolt Promos 49p Promo Foil $14.96
Aether Revolt Promos 49s Promo Foil $14.32
Special Guests 86 Borderless Nonfoil $8.64
Special Guests 86 Borderless Foil $12.56
Special Guests 96 Borderless Foil $46.48
Secret Lair Drop 311 Borderless Nonfoil $8.52
Secret Lair Drop 311 Borderless Foil $10.64
The List AER-49 Regular Nonfoil $6.01

Price History

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Rulings

2017-02-09 wotc
When using improvise to cast a spell with {X} in its mana cost, first choose the value for X. That choice, plus any cost increases or decreases, will determine the spell's total cost. Then you can tap artifacts you control to help pay that cost. For example, if you cast Whir of Invention (a spell with improvise and mana cost {X}{U}{U}{U}) and choose X to be 3, the total cost is {3}{U}{U}{U}. If you tap two artifacts, you'll have to pay {1}{U}{U}{U}.
2017-02-09 wotc
When calculating a spell's total cost, include any alternative costs, additional costs, or anything else that increases or reduces the cost to cast the spell. Improvise applies after the total cost is calculated.
2017-02-09 wotc
Tapping an artifact won't cause its abilities to stop applying unless those abilities say so.
2017-02-09 wotc
Improvise doesn't change a spell's mana cost or mana value.
2017-02-09 wotc
Improvise can't pay for {W}, {U}, {B}, {R}, {G}, or {C} mana symbols in a spell's total cost.
2017-02-09 wotc
Improvise can't be used to pay for anything other than the cost of casting the spell. For example, it can't be used during the resolution of an ability that says "Counter target spell unless its controller pays {3}."
2017-02-09 wotc
If an artifact you control has a mana ability with {T} in the cost, activating that ability while casting a spell with improvise will result in the artifact being tapped when you pay the spell's costs. You won't be able to tap it again for improvise. Similarly, if you sacrifice an artifact to activate a mana ability while casting a spell with improvise, that artifact won't be on the battlefield when you pay the spell's costs, so you won't be able to tap it for improvise.
2017-02-09 wotc
Equipment attached to a creature doesn't become tapped when that creature becomes tapped, and tapping that Equipment doesn't cause the creature to become tapped.
2017-02-09 wotc
Because improvise isn't an alternative cost, it can be used in conjunction with alternative costs.

Format Legality

Tlr Legal
Standard Not Legal
Future Not Legal
Historic Legal
Timeless Legal
Gladiator Legal
Pioneer Legal
Modern Legal
Legacy Legal
Pauper Not Legal
Vintage Legal
Penny Legal
Commander Legal
Oathbreaker Legal
Standardbrawl Not Legal
Brawl Legal
Alchemy Not Legal
Paupercommander Not Legal
Duel Legal
Oldschool Not Legal
Premodern Not Legal
Predh Not Legal