Ingenious Prodigy 

Creature — Human Wizard
$0.31 #3225 0.11 3.0 years
Skulk (This creature can't be blocked by creatures with greater power.)
This creature enters with X +1/+1 counters on it.
At the beginning of your upkeep, if this creature has one or more +1/+1 counters on it, you may remove a +1/+1 counter from it. If you do, draw a card.
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Cards similar to Ingenious Prodigy 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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"
, Remove a +1/+1 counter from this card: Draw a card."
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"Whenever one or more +1/+1 counters are put on this creature, draw a card. This ability triggers only once each turn."
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"Remove two +1/+1 counters from this creature: Draw a card."
+1 more matching line
Ray Fillet, Man Ray82%
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"
, Remove a +1/+1 counter from a creature you control: Draw a card."
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$0.05↓#28968↓0.36↑11.4 years↑
"This creature enters with two +1/+1 counters on it."