Heart of the Valorous

Heart of the Valorous was a buff that passively doubled Valor Points gains. It did not raise the weekly valor cap, so the long-term rate of Valor Point acquisition was unaffected. The buff was active on all characters during designated time windows, and persisted through death, logging out, and other interruptions until deactivated by Blizzard itself. With the removal of Valor Points in the Warlords of Draenor expansion, it is not expected to be seen again.

History
Heart of the Valorous was automatically active on all characters in the game during time windows designated by Blizzard. The first window lasted 11 days, but subsequent windows were the length of a weekend, from Friday morning to Monday morning. Heart of the Valorous was never active at the same time as the Gaze of the Black Prince buff, and with the announcement that Gaze of the Black Prince would be active from September 2014 through the release of Patch 6.0.2, which will remove Valor Points from the game entirely, it is unlikely that Heart of the Valorous will reappear.

Schedule
The Heart of the Valorous period from July 4 to July 7 did not have an official announcement, and its exact start and end times are unknown.