Tamiyo, Author of Legends

+1: Look at the top four cards of your library. You may reveal a planeswalker from among them and put it into your hand. Then, shuffle your library.
-3: Put a loyalty counter on each planeswalker you control. Draw a card.
-10: Search your library for up to three planeswalker spells and put them onto the battlefield with an additional loyalty counter on each of them.