Transmute Artifact {U}{U}
Sorcery
Sacrifice an artifact. If you do, search your library for an artifact card. If that card's mana value is less than or equal to the sacrificed artifact's mana value, put it onto the battlefield. If it's greater, you may pay {X}, where X is the difference. If you do, put it onto the battlefield. If you don't, put it into its owner's graveyard. 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.
Triassic Egg 88%
#25853
"Sacrifice this artifact: Choose one. Activate only if there are two or more hatchling counters on this artifact."
Slobad, Goblin Tinkerer 86%
$0.60#7449
"Sacrifice an artifact: Target artifact gains indestructible until end of turn."
Oxidda Daredevil 85%
$0.03#29355
"Sacrifice an artifact: This creature gains haste until end of turn."
Splitting the Powerstone 82%
$0.10#21308
"As an additional cost to cast this spell, sacrifice an artifact."
Incendiary Sabotage 82%
$0.05#26907
"As an additional cost to cast this spell, sacrifice an artifact."
Trash for Treasure 82%
$1.44#3784
"As an additional cost to cast this spell, sacrifice an artifact."