Lord Yi Juyoung

Whenever you cast an instant or sorcery spell, look
at the top 6 cards of your library. You may add an instant or sorcery from among them with equal or lesser mana cost to your hand. Put the rest of the cards on the bottom of your library in a random order.

{4}{w/u}{u/b}: Counter target spell or ability. Lord Yi Juyoung gains protection from all colors in that
card's color identity until end of turn.