Dovahkiin

When Dovahkiin enters the battlefield, choose a
Race. Gain an emblem for the chosen Race. Do this
only once per game.
{t} - Exile a non-token Dragon creature from your battlefield or graveyard. Reveal the top of your
library until you reveal a Thu'um card. You may
play the revealed card, reducing the Shout cost equal
to the power of the Dragon exiled with this ability.
Then, shuffle all cards revealed this way back into
your library, including the Thu'um card.