From WoWWiki

Heroism
Heroism Instant Cast Self range 750 Mana Increases melee, ranged, and spell casting speed by 30% for all party members. Lasts 40 sec.
Usable By
Class	Shaman
Race	Draenei
Properties
Type	Utility
School	Nature
Cooldown	10 minutes
Radius	100 yards
Talents
Talented	No
Other Information
Ranks	1
Requirements	Level 70
Related Buff
Magic Heroism Melee, ranged, and spell casting speed increased by 30%. Duration: 40 seconds

"When your inner instincts take control, your mind goes blank, your senses turn sharp, your body moves easy like a feather and the only thing you see is victory..."

Heroism is a shaman buff. The Alliance version is Heroism, and the Horde version is Bloodlust. They are exactly the same aside from their name.

Contents 1 Functionality 1.1 Rank Table 1.2 Talents 2 External links

Functionality

Increases melee, ranged, and spell casting speed by 30% for all party members. As of Patch 2.4, now affects Global Cooldown.

Rank Table

Rank	Level	Type	Mana Cost	Description	Cost
NA	70	Enhancement	750	Increases melee, ranged, and spell casting speed by 30% for all party members.	7 92

Talents

Talents that can improve this ability:

	Talent Points Needed	Type	Description	Talent Points Available
	25	Enhancement	Mental Quickness: Reduces the mana cost of instant cast spells by {2/4/6}%...	3

External links

Wowhead
Thottbot
Allakhazam