Rover Blades 
Artifact — Equipment Vehicle
Double strike
Equipped creature has double strike.
Equip {4}
Crew 2 (Tap any number of creatures you control with total power 2 or more: This Vehicle becomes an artifact creature until end of turn. Creatures can't be attached to other permanents.)
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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.
Brass Knuckles 92%
$0.20#4965
"Equipped creature has double strike as long as two or more Equipment are attached to it."
Gavel of the Righteous 83%
$0.28#5486
"As long as this Equipment has four or more counters on it, equipped creature has double strike."