Acquisition Octopus 

Artifact Creature — Equipment Octopus
Whenever this creature or equipped creature deals combat damage to a player, draw a card.
Reconfigure {2} ({2}: 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 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.
Mask of Riddles 90%
$1.03#7231
"Whenever equipped creature deals combat damage to a player, you may draw a card."
+1 more matching line
Rogue's Gloves 90%
$1.41#4033
"Whenever equipped creature deals combat damage to a player, you may draw a card."
+1 more matching line
Sure-Footed Infiltrator 90%
$0.14#16631
"Whenever this creature deals combat damage to a player, draw a card."
Nimble Brigand 90%
$0.14#15916
"Whenever this creature deals combat damage to a player, draw a card."
Nine-Tail White Fox 90%
$0.20#21653
"Whenever this creature deals combat damage to a player, draw a card."
Jhessian Thief 90%
$0.16#19091
"Whenever this creature deals combat damage to a player, draw a card."
Suspicious Stowaway // Seafaring Werewolf 90%
$0.16#15739
"Whenever this creature deals combat damage to a player, draw a card."