Dusktome Librarian

Dusktome Librarian has hexproof and defender.
{t}: Draw a card. If it is blue or white with
converted mana cost 2 or less, add {w}{u} to
your mana pool.
{1}{w}{u}{t}: Draw three cards.
Somewhere in her library is an enchanted book with
her character written in it that allows her to interact
with the physical world. But only to read more books,
of course.