Blood Rage is an ability of the Squire that is unlocked at level 20. Under its effect, the Squire's damage and speed is greatly increased.
Blood Rage is a skill best used against bosses. Because of its mana cost, it is advised to use this only against bosses, in dire situations, and when all of the defenses are built and fully upgraded. Blood Rage is particularly effective in the Ogre Crush and Monster Fest challenges.
Leveling and costs
Blood Rage costs 30 mana per second for the first 8 seconds of use, then increases exponentially in a quadratic sequence.
Investing points into the skill increases the damage boost and reduces the mana cost to upkeep it. The initial activation cost of 30 mana cannot be reduced.