Jackal Pup {R}
Creature — Jackal
Whenever this creature is dealt damage, it deals that much damage to you.
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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.
Firedrinker Satyr 100%
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"Whenever this creature is dealt damage, it deals that much damage to you."
Shinka Gatekeeper 100%
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"Whenever this creature is dealt damage, it deals that much damage to you."
Tephraderm 82%
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"Whenever a spell deals damage to this creature, this creature deals that much damage to that spell's controller."
Flesh Reaver 81%
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"Whenever this creature deals damage to a creature or opponent, this creature deals that much damage to you."