I would recommend
Tamiyo, the Moon Sage and
Waste Not. Tamiyo means, once her emblem is active, that not only do you have unlimited hand size, but you also get every spell that you cast back, in essence. Makes
Psychosis crawler very, very viscious with
Jace's archivist.
Niv Mizzet, the Firemind and
Chasm Skulker make use of your draws while
Jace's Erasure and
Sphinx's Tutelage punish your opponents any time you draw while lessoning the chance you will accidentally mill yourself.
Laboratory Maniac, on the other hand, BEGS you to eliminate your deck. By the way, LOVE Nekusar for a Commander, one of my favorites. Just be ready for massive hate once people realize just how painful he gets to be!