Description
Increases the radius of your Battle Shout and Demoralizing Shout abilities by 10%. (rank 1 of 5 value; other ranks not transcribed)
Position confidence
row: Confirmed (talentsforever.com JSON + foreverchanges.pro tier listing); column & arrow: Reported (explicit only in talentsforever.com data/warrior.json)
Change notes
Classic also raised the shouts' duration; the Forever tooltip mentions radius only.