Teferi's Tutelage{2}{U}
Enchantment
When Teferi's Tutelage 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.)
"Tarassel's sixth law of temporal recursion is easy to understand as long as you know the first seven."
Artist: Ilse Gort