Rhythm of War · Chapter 121
Kaladin Swears the Fourth Ideal
In a vision of Tien's death, Kaladin confronts his guilt and accepts that he cannot protect everyone, swearing the Fourth Ideal and manifesting Shardplate from windspren.
Outcome
Kaladin is reborn as a full Radiant, saves his father from falling, and rallies the defenders to retake Urithiru.