Whir of Invention of Special Guests

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

SPG · EN Brian Chippendale
2025-02-14

standard
future
historic
timeless
gladiator
pioneer
explorer
modern
legacy
pauper
vintage
penny
commander
oathbreaker
standardbrawl
brawl
alchemy
paupercommander
duel
oldschool
premodern
predh
usdeurfoiltix
EDHREC
Rareza Tipo Color Cmc L/T
Instant 3
Foil Nonfoil Promo Fecha
★ ✗ 2025-02-14
Booster Digital Oversized Reserved
✗ ✗ ✗ ✗
Paper Mtgo Digital Astral Sega
✗ ✗ ✗ ✗ ✗
Keywords
Set Name Set Code Set Type
Special Guests SPG MASTERPIECE
release: setsize: 0 totalsetsize: 110
onlyFoil: no onlyNonFoil: no
Nombre ID
BORDER COLOR BORDERLESS
FRAME 2015
Date Source Comment
09-02-2017 wotc Because improvise isn't an alternative cost, it can be used in conjunction with alternative costs.
09-02-2017 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.
09-02-2017 wotc Tapping an artifact won't cause its abilities to stop applying unless those abilities say so.
09-02-2017 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}."
09-02-2017 wotc Improvise can't pay for {W}, {U}, {B}, {R}, {G}, or {C} mana symbols in a spell's total cost.
09-02-2017 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.
09-02-2017 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.
09-02-2017 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}.
09-02-2017 wotc Improvise doesn't change a spell's mana cost or mana value.