Sonic Screwdriver 
Artifact
{T}: Add one mana of any color.
{1}, {T}: Untap another target artifact.
{2}, {T}: Scry 1. (Look at the top card of your library. You may put that card on the bottom.)
{3}, {T}: Target creature can't be blocked this turn.
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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.
Manifold Key 100%
$1.44#1031
"{3}, {T}: Target creature can't be blocked this turn."
+1 more matching line
Synod Artificer 90%
$0.36#23763
"{X}, {T}: Untap X target noncreature artifacts."
+1 more matching line
Treasure Map // Treasure Cove 84%
$0.43#2972
"{1}, {T}: Scry 1. Put a landmark counter on this artifact. Then if there are three or more landmark counters on it, remove those counters, transform this artifact, and create three Treasure tokens."
Joven's Tools 83%
$0.13#28248
"{4}, {T}: Target creature can't be blocked this turn except by Walls."