The Technomancer

When The Technomancer enters the battlefield, you
may search your library for a card named The Hat
and add it to your hand, then shuffle.

{2}{x}{t}: Fateseal X (To fateseal X, look at the top
X cards of an opponent's library, then put any
number of them on the bottom of that player's library
and the rest on top in any order.)

"You're not winnin', son."