Krark-Clan Shaman 
Creature — Goblin Shaman
Sacrifice an artifact: This creature deals 1 damage to each creature without flying.
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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.
Leonin Bladetrap 86%
$0.22#28196
"{2}, Sacrifice this artifact: It deals 2 damage to each attacking creature without flying."
Thermal Navigator 85%
$0.27#21091
"Sacrifice an artifact: This creature gains flying until end of turn."