Lifespark Spellbomb 
Artifact
{G}, Sacrifice this artifact: Until end of turn, target land becomes a 3/3 creature that's still a land.
{1}, Sacrifice this artifact: Draw a card.
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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.
Necrogen Spellbomb 100%
$0.14#18767
"{1}, Sacrifice this artifact: Draw a card."
+1 more matching line
Esoteric Duplicator 98%
$1.16#6396
"{2}, Sacrifice this artifact: Draw a card."
+1 more matching line
Scroll of Avacyn 93%
$0.26#17000
"{1}, Sacrifice this artifact: Draw a card. If you control an Angel, you gain 5 life."
Culling Dais 87%
$0.17#7386
"{1}, Sacrifice this artifact: Draw a card for each charge counter on this artifact."
Soul-Guide Lantern 82%
$0.29#1361
"{1}, {T}, Sacrifice this artifact: Draw a card."
+1 more matching line