Manus, Metatextual Mage

If Manus, Metatextual Mage is your commander,
you may search your library one time for a
historic spell. Add it to your hand, then shuffle.
{t}: Exile a historic spell you control. Draw cards
equal to its converted mana cost, then exile any
cards without flavor text.
"I wrote about the edge of our universe,
then found yours,"—Manus Farbank