Abilities 8 of Fudai Daimyō
You do not need to do anything special to trigger a Self ability. When you use it, it affects you.
You become immune to Fear and Soothe effects, and may use abilities with the Rage trigger. While enraged, however, you cannot willingly surrender or withdraw from a fight; you must continue fighting until you are subdued or victorious. You may not willingly end your Rage, but others can end it with a Rouse effect.