Circle of Flame {1}{R}
Enchantment
Whenever a creature without flying attacks you or a planeswalker you control, this enchantment deals 1 damage to that creature.
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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.