Historian Thorthenes Ezmires

Whenever a player casts a historic spell, you may
draw a card. You may pay {u} or {3} to draw
another card.
{t}: Search your library for a historic card and
put it into your hand. Then shuffle your library.
(Artifacts, legendaries, and Sagas are historic.)
He knows more about history than anyone else.
All you need to do is ask him...