Onion Knight

When Onion Knight enters the battlefield,
choose two target players. Each of them searches
their library for a card, then shuffles their library
and puts that card on top of it.
"If we don't put aside our enmities and band together,
we will die. And then it doesn't matter whose skeleton
sits on the Iron Throne."
—Davos Seaworth on the Great War, to
Daenerys Targaryen