Bloodlust is perhaps the most iconic spell in World of Warcraft. A party- or raid-wide effect that increases all players’ Haste by 30 percent, it has the strongest cooldown in the game. Whether you cast it at the end of a boss fight when all of your teammates have their biggest abilities off-cooldown or during the final stages of an encounter hoping to get that last bit of damage on a boss, Bloodlust is a valuable tool that’s essentially a necessity for all PvE content.

Only four classes have a Bloodlust effect built into their kit naturally: Shaman, Mage, Hunter, and Evoker. The effect is the same across the board, meaning that any of these classes can bring the same level of value to a raid or dungeon group.

Alternatively, any class in the game can bring a lesser version of the Bloodlust effect to a group via crafted items. Here are all the versions of Bloodlust currently present in World of Warcraft, as of The War Within expansion.

The original haste-buffing effect, Bloodlust (also known as Heroism to Alliance players) is a spell unique to Shamans. The spell inspired other versions for various classes to make Shamans less mandatory for dungeons and raids.