Pensive Professor {1}{U}{U}
Creature — Human Wizard
Increment (Whenever you cast a spell, if the amount of mana you spent is greater than this creature's power or toughness, put a +1/+1 counter on this creature.)
Whenever one or more +1/+1 counters are put on this creature, draw a card.
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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.
Dusk Legion Duelist 100%
$2.29#2666
"Whenever one or more +1/+1 counters are put on this creature, draw a card. This ability triggers only once each turn."
Exemplar of Light 98%
$0.34#1300
"Whenever you put one or more +1/+1 counters on this creature, draw a card. This ability triggers only once each turn."
+1 more matching line
Fathom Mage 90%
$0.51#1708
"Whenever a +1/+1 counter is put on this creature, you may draw a card."
+1 more matching line
Kianne, Corrupted Memory 82%
$0.56#10835
"Whenever you draw a card, put a +1/+1 counter on this card."
The Astonishing Ant-Man 82%
$0.42#15760
"Whenever you draw a card, put a +1/+1 counter on this card."
Toothy, Imaginary Friend 82%
$8.40#5112
"Whenever you draw a card, put a +1/+1 counter on this card."
Baxter, Fly in the Ointment 82%
$0.31#8503
"Whenever you draw a card, put a +1/+1 counter on this card."
Cloaked Cadet 81%
$0.17#18585
"Whenever one or more +1/+1 counters are put on one or more Humans you control, draw a card. This ability triggers only once each turn."