Heroism

Heroism is a level 50 Alliance shaman ability that increases haste by 30% for all party and raid members for 40 seconds. Heroism is available only to Alliance shamans; Horde shamans instead learn Bloodlust. The two spells are identical in every way except for the name, making it one of the bloodlust effects.

Trivia

 * Heroism is the Alliance equivalent to Bloodlust, which is based off the spell of the same name found in both Warcraft II and Warcraft III, that preceded World of Warcraft. Despite being the exact same effect, [Heroism] was named differently due to "Bloodlust" not being an appropriate sounding term for the Alliance.
 * Bloodlust and Heroism are some of the only faction-specific class abilities in the game.
 * The Draenor navy battleship Heroism is named after this ability.