Student of the Greybeards

Enchanted creature is a spellshaper in addition
to its other creature types and has "{u}{t}: Discard
a card. Return target instant or sorcery from
your graveyard to your hand."
When you cast your first spell each turn, exile
cards from the top of your library until you exile
an instant or sorcery that costs less. You may
cast it without paying its mana cost. Put the
exiled cards at the bottom of your library in a
random order.