Thieving Otter 

Creature — Otter
$0.16 #12056 0.00 6.5 years
Whenever this creature deals damage to an opponent, draw a card.
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Cards similar to Thieving Otter 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.
Vedalken Heretic100%
$0.65↑#22471↓0.21↑17.5 years↑
"Whenever this creature deals damage to an opponent, you may draw a card."
Thieving Magpie100%
$0.10↓#15084↓0.0027.4 years↑
"Whenever this creature deals damage to an opponent, draw a card."
Lu Xun, Scholar General100%
$0.31↑#16942↓0.44↑27.5 years↑
"Whenever this card deals damage to an opponent, you may draw a card."
Saltwater Stalwart96%
$0.15↓#27011↓0.12↑8.4 years↑
"Whenever this creature deals damage to an opponent, target player draws a card."
Nine-Tail White Fox96%
$0.22↑#22246↓0.10↑8.3 years↑
"Whenever this creature deals combat damage to a player, draw a card."
Stealer of Secrets96%
$0.05↓#21082↓0.29↑14.0 years↑
"Whenever this creature deals combat damage to a player, draw a card."
Scroll Thief96%
$0.06↓#17346↓0.0016.3 years↑
"Whenever this creature deals combat damage to a player, draw a card."
Niv-Mizzet, Dracogenius95%
$0.92↑#9381↑0.65↑14.0 years↑
"Whenever this card deals damage to a player, you may draw a card."
Neurok Commando94%
$0.13↓#19219↓0.41↑15.7 years↑
"Whenever this creature deals combat damage to a player, you may draw a card."
Sea-Dasher Octopus94%
$0.81↑#4811↑0.046.5 years
"Whenever this creature deals combat damage to a player, draw a card."
Marchesa's Infiltrator93%
$0.22↑#22548↓0.27↑12.4 years↑
"Whenever this creature deals combat damage to a player, draw a card."
Coastal Piracy93%
$0.29↑#1517↑0.19↑27.0 years↑
"Whenever a creature you control deals combat damage to an opponent, you may draw a card."
Tandem Lookout93%
$0.80↑#2223↑0.29↑14.5 years↑
"As long as this card is paired with another creature, each of those creatures has "Whenever this creature deals damage to an opponent, draw a card.""
Keen Sense92%
$2.37↑#2848↑0.30↑19.7 years↑
"Whenever enchanted creature deals damage to an opponent, you may draw a card."
Ophidian Eye92%
$11.83↑#1612↑0.73↑20.0 years↑
"Whenever enchanted creature deals damage to an opponent, you may draw a card."
Jhessian Thief92%
$0.08↓#19976↓0.13↑11.3 years↑
"Whenever this creature deals combat damage to a player, draw a card."
Jeskai Shrinekeeper92%
$0.21↑#136050.12↑1.5 years↓
"Whenever this creature deals combat damage to a player, you gain 1 life and draw a card."
Ultimecia, Temporal Threat92%
$0.53↑#7307↑0.67↑1.4 years↓
"Whenever a creature you control deals combat damage to a player, draw a card."
Illvoi Infiltrator91%
$0.15↓#19171↓0.061.2 years↓
"Whenever this creature deals combat damage to a player, draw a card."