First printed in Aether Revolt (2017)
Artifact Creature — Assembly-Worker
Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for 
.)
"They never tire, they never complain, and they never ask questions. Build more."
—Ivash, Consulate inventor
3/3
- Illustrated by
- Karl Kopinski
Legality
- Legal in
- Pioneer, Modern, Legacy, Vintage, Pauper, Penny Dreadful, Commander, Duel Commander, Pauper Commander, Oathbreaker
- Not legal in
- Standard, Future Standard, Historic, Timeless, Alchemy, Premodern, Old School 93/94, Gladiator, PreDH, Tiny Leaders, Brawl, Standard Brawl, Competitive Brawl
Rulings (8)
- 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.
- Tapping an artifact won't cause its abilities to stop applying unless those abilities say so.
- 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.
- Improvise doesn't change a spell's mana cost or mana value.
- If an artifact you control has a mana ability with
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. - Improvise can't pay for
, 
, 
, 
, 
, or 
mana symbols in a spell's total cost. - 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
." - Because improvise isn't an alternative cost, it can be used in conjunction with alternative costs.
Prices
Paper price: €0.03 / $0.12 , the cheapest non-foil print (Cardmarket and TCGplayer through MTGJSON, 2 Nov 2026).
MTGO price: 0.002 TIX, the cheapest non-foil print (average sell price on GoatBots, 2 Nov 2026).