Mouth of the Storm 
Creature — Elemental
$0.11 #23175 0.10 1.1 years
Flying
Ward 
(Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays .)
(Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays .)When this creature enters, creatures your opponents control get -3/-0 until your next turn.
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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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"Ward "
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"Creatures your opponents control get -1/-0."
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"+1 more matching line
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