Soaring Lightbringer 

Enchantment Creature — Bird Glimmer
$1.10 #3867 0.13 1.9 years
Flying
Other enchantment creatures you control have flying.
Whenever you attack a player, create a 1/1 white Glimmer enchantment creature token that's tapped and attacking that player.
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Cards similar to Soaring Lightbringer 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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"Creatures you control have flying."
Militia's Pride74%
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"Whenever a nontoken creature you control attacks, you may pay
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"Vehicles you control have flying."
+1 more matching line
Mardu Ascendancy73%
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"Whenever a nontoken creature you control attacks, create a 1/1 red Goblin creature token that's tapped and attacking."