Dissection Tools 
Artifact — Equipment
When this Equipment enters, manifest dread, then attach this Equipment to that creature.
Equipped creature gets +2/+2 and has deathtouch and lifelink.
Equip—Sacrifice a 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.
Killer's Mask 100%
$0.21#19305
"When this Equipment enters, manifest dread, then attach this Equipment to that creature."
+1 more matching line
Cursed Windbreaker 100%
$0.16#16035
"When this Equipment enters, manifest dread, then attach this Equipment to that creature."
Conductive Machete 100%
$0.11#18042
"When this Equipment enters, manifest dread, then attach this Equipment to that creature."
+1 more matching line