Battered Golem 
Artifact Creature — Golem
This creature doesn't untap during your untap step.
Whenever an artifact enters, you may untap this creature.
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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.
Icebreaker Kraken 88%
$0.39#7423
"When this creature enters, artifacts and creatures target opponent controls don't untap during that player's next untap step."
Steel Dromedary 86%
$0.15#23100
"This creature doesn't untap during your untap step if it has a +1/+1 counter on it."
Pine Walker 85%
$0.18#23566
"Whenever this creature or another creature you control is turned face up, untap that creature."