Whir of Invention {X}{U}{U}{U}
Instant
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.
click a line to search just that ability, click more to combine them
Cards that do something similar expected a card that isn't here?
Reports become test cases the matcher is graded against before an update ships. Delvefall isn't a chatbot guessing, it compares the printed rules text of every card with plain math, and examples like yours decide which differences should count.
Reshape 100%
$4.84#3090
"Search your library for an artifact card with mana value X or less, put it onto the battlefield, then shuffle."
Urza's Saga 86%
$40.85#120
"Search your library for an artifact card with mana cost {0} or {1}, put it onto the battlefield, then shuffle."
Tezzeret the Seeker 86%
$24.40#1688
"−X: Search your library for an artifact card with mana value X or less, put it onto the battlefield, then shuffle."
Wargate 83%
$3.81#5686
"Search your library for a permanent card with mana value X or less, put it onto the battlefield, then shuffle."
Origin of Iron Man 83%
$0.58#22821
"You may put an artifact card with mana value 5 or less from your hand onto the battlefield."