Stromkirk Noble 
Creature — Vampire Noble
This creature can't be blocked by Humans.
Whenever this creature deals combat damage to a player, put a +1/+1 counter on it.
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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.
Uninvited Geist // Unimpeded Trespasser 91%
$0.10#23699
"This creature can't be blocked."
+1 more matching line