Jeff Measelle (see David Lichtenstein 99)
All things considered, knowing what is in your opponents hand is very useful information, however, the real value lies in your ability to take away their best creature, and turn it into Valki later
Twisted Nightmares offers a 30-card Marik deck which is all about pretty useless Fiend-type monsters with the occasional gem like Lava Golem thrown in for good measure
Immerse yourself in the art of Bloomburrow with this collection of art cards
While Paradigm Shift is by no means the primary way most decks using Jace and/or the Oracle empty their library, it is a way to do it and thus it has seen play in Legacy and Vintage, where the Oracle especially is a very common win condition
While it is currently banned from competitive play, there is no denying that Maxx "C" is the most powerful handtrap of all time , and it is unlikely for the card to ever be legal in competitive play again