Locthwain Paladin 

Creature — Human Knight
Menace (This creature can't be blocked except by two or more creatures.)
Adamant — If at least three black mana was spent to cast this spell, this creature enters with 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.
Henge Walker 85%
$0.07#26148
"If at least three mana of the same color was spent to cast this spell, this creature enters with a +1/+1 counter on it."
Vantress Paladin 84%
$0.09#28602
"If at least three blue mana was spent to cast this spell, this creature enters with a +1/+1 counter on it."