The Shepherd's Journal

Whenever you add mana, put that many Page Counters on The Shepherd's Journal.
{t}: Remove any number of Page Counters from
The Shepherd's Journal. If you do, search your library and/or graveyard for a card with a
converted mana cost equal to the number of Page Counters removed, and put that card into your
hand. If you searched your library this way,
shuffle it.