Mask of Riddles {U}{B}
Artifact — Equipment
Equipped creature has fear. (It can't be blocked except by artifact creatures and/or black creatures.)
Whenever equipped creature deals combat damage to a player, you may draw a card.
Equip {2}
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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.
Rogue's Gloves 100%
$1.41#4033
"Whenever equipped creature deals combat damage to a player, you may draw a card."
+1 more matching line
Skeleton Key 96%
$0.25#8786
"Whenever equipped creature deals combat damage to a player, you may draw a card. If you do, discard a card."
+2 more matching lines
Acquisition Octopus 90%
$0.27#10549
"Whenever this creature or equipped creature deals combat damage to a player, draw a card."
Kassandra, Eagle Bearer 88%
$2.19#7195
"Whenever a creature you control with a legendary Equipment attached to it deals combat damage to a player, draw a card."
Shadowmage Infiltrator 84%
$0.40#5436
"Whenever this creature deals combat damage to a player, you may draw a card."
+1 more matching line
Ninja of the Deep Hours 84%
$2.04#3480
"Whenever this creature deals combat damage to a player, you may draw a card."
Ohran Viper 84%
$1.24#7575
"Whenever this creature deals combat damage to a player, you may draw a card."
Neurok Commando 84%
$0.05#18562
"Whenever this creature deals combat damage to a player, you may draw a card."
Broodbirth Viper 84%
$0.57#12828
"Whenever this creature deals combat damage to a player, you may draw a card."
Hystrodon 84%
$1.54#19820
"Whenever this creature deals combat damage to a player, you may draw a card."
Vanguard Suppressor 84%
$0.75#8841
"Whenever this creature deals combat damage to a player, draw a card."
Suspicious Stowaway // Seafaring Werewolf 84%
$0.16#15739
"Whenever this creature deals combat damage to a player, draw a card."
Illvoi Infiltrator 84%
$0.11#19170
"Whenever this creature deals combat damage to a player, draw a card."
Stealer of Secrets 84%
$0.12#20288
"Whenever this creature deals combat damage to a player, draw a card."
Sure-Footed Infiltrator 84%
$0.14#16631
"Whenever this creature deals combat damage to a player, draw a card."
Soulknife Spy 84%
$0.16#18207
"Whenever this creature deals combat damage to a player, draw a card."