Agility

Agility is one of the three primary attributes that grants movement and attack speed and armor to every hero. Agility heroes gain 25% more than other heroes, and also gain attack damage.

Bonuses
Strength and intelligence heroes gain the following bonuses for each point of agility:
 * Armor
 * Attack speed
 * % Movement speed

Agility heroes gain the following bonuses for each point of agility:
 * Attack damage
 * Armor
 * Attack speed
 * % Movement speed

To gain 1 armor, ( for agility heroes) agility points are required. To gain 1% movement speed, ( for agility heroes) agility points are required. Movement speed bonus from agility points gets summed up and is treated as one instance and stacks multiplicatively with other percentage-based movement speed bonuses.

Agility heroes
Because Agility heroes are the only class of heroes to gain both damage and attack speed as their primary attribute increases, they tend to have the highest physical damage output as the game progresses. This makes them scale very well with offensive items. They tend to have limited disabling capabilities or nukes; almost all their abilities augment their physical capabilities or serve as positioning or escape mechanisms. This tends to make them much more vulnerable and weak in the early game when strong offensive disables and nukes dictate the flow of kills, but also means that, with good items under their belts, they will be the ones delivering the greatest amount of damage in the late game, while also being dealt the least amount of physical damage as a result of their high armor. Agility heroes have a roughly even split between being melee or being ranged, and fit primarily into carry and ganker roles.

There are agility heroes in Dota 2.

Below is a table of all heroes with agility as their primary attribute. The growth columns indicate by how much the base values increases for each level of the hero.

Agility items
These items grant heroes a passive agility bonus by having them merely equipped.