Teferi's Tutelage 

Enchantment
$0.29 #5142 0.96 6.2 years
When this enchantment enters, draw a card, then discard a card.
Whenever you draw a card, target opponent mills two cards. (They put the top two cards of their library into their graveyard.)
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Cards similar to Teferi's Tutelage 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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"Whenever you draw a card, each opponent mills two cards."
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"When this creature enters, draw a card, then discard a card."
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"When this creature enters, draw a card, then discard a card."
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"When this creature enters, draw a card, then discard a card."
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"When this creature enters, draw a card, then discard a card."
Screeching Drake89%
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"When this creature enters, draw a card, then discard a card."
Owl Familiar89%
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"When this creature enters, draw a card, then discard a card."
Quicksilver Fisher89%
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"When this creature enters, draw a card, then discard a card."
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"When this creature enters, draw a card, then discard a card."
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$0.08↓#26976↓0.24↓15.9 years↑
"When this creature enters, draw a card, then discard a card."
Jace's Erasure89%
$0.30↑#7719↓0.27↓16.1 years↑
"Whenever you draw a card, you may have target player mill a card."
Temur Tawnyback88%
$0.10↓#22667↓0.19↓1.4 years↓
"When this creature enters, draw a card, then discard a card."
Bazaar Trademage88%
$0.15↓#23494↓0.29↓7.2 years↑
"When this creature enters, draw two cards, then discard three cards."
Sphinx's Tutelage86%
$1.53↑#3652↑0.52↓11.1 years↑
"Whenever you draw a card, target opponent mills two cards. If two nonland cards that share a color were milled this way, repeat this process."
Evangel of Synthesis84%
$0.07↓#26204↓0.00↓3.8 years↓
"When this creature enters, draw a card, then discard a card."
Merfolk Pupil82%
$0.26↓#19696↓0.863.8 years↓
"When this creature enters, draw a card, then discard a card."
Aether Syphon80%
$0.26↓#8771↓0.13↓1.6 years↓
"Max speed — Whenever you draw a card, each opponent mills two cards."
Stockman, Mad Fly-entist78%
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"When this card enters, draw a card, then discard a card."