Sylvan Librarian

Once during each of your turns, if you would
draw one or more cards, you may draw that
many cards minus one and return a land card
from your graveyard to your hand instead.
{g}, {t}, Mill a card: Gain 4 life. If you're a savant,
untap another target permanent. (Each player
who has the most cards in hand is a savant.)
"The winds carry all lost wisdom and tangle it in
these branches."