Boon of Bul-Kathos


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Boon of Bul-Kathos is a Barbarian passive skill unlocked at Level 60, which reduces the cooldown on Earthquake, Call of the Ancients, and Wrath of the Berserker.


Name Level Description
Boon of Bul-Kathos

1 Reduce the cooldowns of your:

Earthquake by 15 seconds.
Call of the Ancients by 30 seconds.
Wrath of the Berserker by 30 seconds.

This skill is affected by your characters:

The aid of the Immortal King shall come to those who have earned it.


No synergies with any active skills or other Barbarian passives are known.


Passive skills have had a long and storied history. When Diablo III debuted at the WWI 2008, skill trees included passive skills, much like in Diablo II. In 2010, it was announced that passive skills had been renamed traits and separated out from active skills. At the July 2011 Press Event, Blizzard announced that passive skills were once again in the game, replacing the traits system.


Boon of Bul-Kathos was not seen until it showed up in the Diablo III beta as a level 30 passive. When passives were reorganized for Beta Patch 14, Boon of Bul-Kathos was moved up to level 60.


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