Hyatt Tucci, Deck Builder

When Hyatt Tucci enters the battlefield,
you have 15 minutes to choose a legendary
creature or planeswalker that is a legal
commander and build a deck with it.
{t}, Exile you library and Hyatt Tucci:
choose a deck created by Hyatt Tucci. That
becomes your new deck. (The commander is placed
in the command zone, and all cards are shuffled and
placed in the library.)