Vengeance (passive)

Vengeance was one of the passive abilities granted to characters choosing a tanking specialization. Its purpose was to increase damage, and thus threat, for tanks in order to compete with the increased DPS gained in later tier end-game content. It did this by granting a percentage of damage taken as attack power for a limited period.

Vengeance was a bonus provided to all tanking specializations, ie Blood Death knights, Guardian Druids (in Bear Form), Brewmaster Monks, Protection Paladins and Protection Warriors (in Defensive Stance). In general, a tanking specialization was required for Vengeance to be granted. However non-Guardian Druids could gain Vengeance in Bear Form by selecting the Heart of the Wild talent.

In addition to the specialization requirement, Druids and Warriors needed to be in their tanking forms, namely Bear Form and Defensive Stance respectively. Changing to a different form (with the exception of Cat Form) or stance would prevent additional Vengeance from being gained, but not cancel the existing stacks of Vengeance. However Cat Form was a specific exception to this and would cause the Vengeance effect to be cancelled.

Class specific abilities
Each tanking spec had its own version of Vengeance:
 * Vengeance (death knight) - Death knight
 * Vengeance (druid) - Druid
 * Vengeance (monk) - Monk
 * Vengeance (paladin) - Paladin
 * Vengeance (warrior) - Warrior