Heartfire Immolator {1}{R}
Creature — Human Wizard
Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)
{R}, Sacrifice this creature: It deals damage equal to its power to target creature or planeswalker.
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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.
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"{R}, Sacrifice this creature: It deals damage equal to its power to target creature."
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"{R}, Sacrifice this creature: Target player shuffles their library."
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"{R}, Sacrifice this creature: It deals 6 damage to each creature and each player."
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"{R}, Sacrifice this creature: It deals 1 damage to each creature without flying."
Flame Elemental 81%
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"{R}, {T}, Sacrifice this creature: It deals damage equal to its power to target creature."