Martyr's Cry 

Sorcery
$6.92 #28960 0.69 32.1 years
Exile all white creatures. For each creature exiled this way, its controller draws a card.
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Cards similar to Martyr's Cry 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.
Introduction to Annihilation70%
$0.31↓#5862↑0.47↓5.4 years↓
"Exile target nonland permanent. Its controller draws a card."
Depopulate70%
$0.29↓#10345↑0.26↓4.4 years↓
"Each player who controls a multicolored creature draws a card. Then destroy all creatures."