April O'Neil, Human Element 

Legendary Creature — Human Detective
$3.18 #12149 0.39 0.6 years
Whenever a player casts an artifact, instant, or sorcery spell, you create a Mutagen token. (It's an artifact with "
,
, Sacrifice this token: Put a +1/+1 counter on target creature. Activate only as a sorcery.")
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Cards similar to April O'Neil, Human Element 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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