Aurification {2}{W}{W}
Enchantment
Whenever a creature deals damage to you, put a gold counter on it.
Each creature with a gold counter on it is a Wall in addition to its other creature types and has defender. (Those creatures can't attack.)
When this enchantment leaves the battlefield, remove all gold counters from all creatures.
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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.
Hidetsugu Consumes All // Vessel of the All-Consuming 84%
$0.60#13750
"Whenever this creature deals damage, put a +1/+1 counter on it."
Snapping Sailback 83%
$0.22#14168
"Whenever this creature is dealt damage, put a +1/+1 counter on it."