Arctic Aven 

Creature — Bird Wizard
$0.09 #25511 0.00 14.3 years
Flying
This creature gets +1/+1 as long as you control a Plains.
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Cards similar to Arctic Aven 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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