Which champion's title is 'The Eye of Twilight'?

The champion known by the title “The Eye of Twilight” is Shen.

Shen is the leader of the Kinkou, an Ionian order devoted to maintaining balance between the material world and the spirit realm. His title reflects his role as an impartial observer and enforcer who must act without being ruled by emotion, prejudice, or ego. In League of Legends lore, Shen’s duties often place him in conflict with threats that cross between these two realms.

The title is not the name of one of Shen’s abilities. His kit includes abilities such as Twilight Assault and Stand United, while his passive is Ki Barrier. The word “Twilight” therefore appears in both his title and his ability names, which can cause confusion. Kennen is also a Kinkou member, but he is known as the Heart of the Tempest; Akali is the Fist of Shadow, and Zed is the Master of Shadows.