Curse of Shaken Faith 
Enchantment — Aura Curse
$0.30 #8967 0.50 4.9 years
Enchant player
Whenever enchanted player casts a spell other than the first spell they cast each turn or copies a spell, this Aura deals 2 damage to them.
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Cards similar to Curse of Shaken Faith 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.
Magebane Lizard74%
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"Enchant player"