Sphinx's Tutelage
4d90c3b0-f958-4a15-94a1-9bf1b0a9ac2a
$1.32 CND
Whenever you draw a card, target opponent puts the top two cards of his or her library into his or her graveyard. If they're both nonland cards that share a color, repeat this process.
{5}{U}: Draw a card, then discard a card.