Manic Scribe 

Creature — Human Wizard
When this creature enters, each opponent mills three cards.
Delirium — At the beginning of each opponent's upkeep, if there are four or more card types among cards in your graveyard, that player mills three cards.
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Cards that do something similar expected a card that isn't here?
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Overwhelmed Apprentice 96%
$0.22#11528
"When this creature enters, each opponent mills two cards. Then you scry 2."