Manic Scribe is a uncommon Creature — Human Wizard card from Shadows over Innistrad (SOI), collector number 73. Current market price: $0.30 (foil $1.93), TCGplayer market prices via Scryfall.
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.