Advancing the Spirit 

Enchantment
When this enchantment enters, draw a card.
You may pay {0} rather than pay the power-up cost of the first power-up ability you activate during each of your turns.
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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.
Gavi, Nest Warden 82%
$0.47#13966
"You may pay {0} rather than pay the cycling cost of the first card you cycle each turn."
Garruk's Uprising 86%
$0.56#92
"When this enchantment enters, if you control a creature with power 4 or greater, draw a card."
Invasion of Theros // Ephara, Ever-Sheltering 85%
$0.66#7147
"Whenever another enchantment you control enters, draw a card."
Elvish Archivist 84%
$0.32#8369
"Whenever one or more enchantments you control enter, draw a card. This ability triggers only once each turn."