Acquisition Octopus 

Artifact Creature — Equipment Octopus
$0.15 #10744 0.04 4.5 years
Whenever this creature or equipped creature deals combat damage to a player, draw a card.
Reconfigure
(
: Attach to target creature you control; or unattach from a creature. Reconfigure only as a sorcery. While attached, this isn't a creature.)
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Cards similar to Acquisition Octopus 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.
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"Whenever equipped creature deals combat damage to a player, you may draw a card."
+1 more matching line
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"Whenever this creature or enchanted creature deals combat damage to a player, draw a card."