The wizard who reads a thousand books is powerful. The wizard who memorizes a thousand books is insane.

Battle of Wits

At the beginning of your upkeep, if you have 200 or more cards in your library, you win the game.

"You fool! You fell victim to one of the classic blunders."
—Vizzini

Secret Lair Drop

There is no loftier ambition than the pursuit of knowledge.

The List

Magic 2013

Ninth Edition

Battle of Wits has an “intervening ‘if’ clause.” This means that if you don’t have 200 or more cards in your library at the beginning of your upkeep, the ability won’t trigger. If the ability does trigger, but you have fewer than 200 cards in your library when the ability resolves, the ability will do nothing.

In tournaments, you must be able to shuffle your entire deck within a reasonable amount of time.