Mirri, Weatherlight Duelist 
Legendary Creature — Cat Warrior
$5.06 #2658 0.51 9.0 years
First strike
Whenever Mirri attacks, each opponent can't block with more than one creature this combat.
As long as Mirri is tapped, no more than one creature can attack you each combat.
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Cards similar to Mirri, Weatherlight Duelist 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.
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"No more than two creatures can block each combat."
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"First strike"
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"First strike"
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"At the beginning of your second main phase, if this creature is tapped, you gain 2 life."