Sleepin, The Drowsy Wizard

Exile an instant or sorcery card from your hand:
exile cards from the top of your library until
you exile an instant or sorcery card whose mana
value is less than the exiled card's mana value.
Put that card into your hand if the resulting
spell's mana value is less than this spell's mana
value. Then put all cards exiled this way that
weren't put into your hand on the bottom of
your library in a random order.
Whenever you cast an instant or sorcery spell,
draw a card.