Also known as stats, was a passive ability possessed by every hero. Each additional level of Attribute Bonus increases all attributes—strength, agility, and intelligence—by 2. Attribute Bonus is distinct from the automatic attribute increases gained by every hero at every level. Just like regular abilities, heroes can place a new ability point in Attribute Bonus at every odd level. Attribute Bonus can be leveled a maximum of 10 times, from level 1/3/5/7/9/11/13/15/17/19 on, respectively.
Attribute Bonus is a convenient way to compensate for a hero's early-game weakness without filling inventory space. For example, Wraith King and Sven have very low intelligence, so they often take a few early levels of Attribute Bonus to improve their mana pool.
- Unlike all other heroes, 7.00. gained one Attribute Bonus at level 25, granting him 6 points in all stats at once. This was removed in version
- Because of the associated bonuses of each attribute, each level of Attribute Bonus had the following cumulative effects:
- When fully leveled, Attribute Bonus granted a total of 20 attack damage, 400 health, 0.6 health regeneration, 20 attack speed, 2.86 armor, 240 mana, 0.8 mana regeneration and 1.25% spell damage.