Lore Master Clandon

Whenever you cast a historic spell, put a
knowledge counter on Lore Master Clandon. (Artifacts, legendaries, and Sagas are historic.)
—Remove three knowledge counters from Lore Master Clandon: Search your library for a nonland card with mana value less than or equal to the number of knowledge counters on Clandon, exile it, then shuffle your library. You may cast that card without paying its mana cost this turn.
—{t}: Look at the top card of your library. If it's a historic card, you may revea