Borderlands 2Skill Tree Calculator

Reloading your gun increases your Fire Rate for a short time.

Duration: 6s

Increases your Critical Damage and Weapon Swap Speed.

Increases Gun Damage and Reload Speed while holding a Pistol.

Swapping Weapons increases the Damage of your next shot.

While Gunzerking with 2 equal weapon-types, they gain increased Gun Damage.

While Gunzerking with 2 different weapon-types, they gain increased Accuracy.

Killing an enemy reloads all of your holstered guns.
Swapping weapons after you killed an enemy triggers Locked and Loaded.

Your last shot from a magazine deals increased Damage.

You get the full bonus with 12 or more Magazine Size. The bonus decreases with lower magazine sizes.

Killing an enemy increases Fire Rate and Crit Damage for a short time.

Duration: 7s

You can now Gunzerk while in Fight for Your Life.

While Gunzerking is on Cooldown, you gain increased Gun, Melee, and Grenade Damage.

Killing an enemy adds any excess damage as Bonus Gun Damage* to your shots for a short time.
Subsequent kills override the Bonus Gun Damage and duration.

Duration: 10s
Bonus Gun Damage: up to +400%

Every 0.5s you have the chance to not consume any ammo for 0.5s.

The lower your health and shield, the greater the chance for free ammo.
An empty shield will also grant the full chance.

Increases your Magazine Size and Ammo Carrying Capacity for all ammo types.

Increases your Reload Speed and Melee Damage.

Extends your Gunzerking Duration.

Increases your Skill Cooldown Rate.

While Gunzerking you gain improved Recoil and Maximum Inaccuracy and shooting an enemy has a 30% Chance to improve your current Accuracy.

Recoil: -80%
Max Inaccuracy: -10%

Hyperion Weapon Bug
‍Slows their improving accuracy and has a 30% Chance to worsen their Accuracy.

Killing an enemy gives you a periodic* chance to reduce your Shot Cost for a short time.

If the Shot Cost is reduced below 0, your shots add Ammo to the magazine instead.

Duration: 7s
Shot Cost: -2

Killing an enemy while Gunzerking extends Gunzerking Duration.

Throwing a grenade while Gunzerking lets you to throw 2 grenades. The 2^nd grenade is free and doesn't consume grenade ammo.

Shooting an enemy reduces Skill Cooldown.
This effect has a short cooldown.

Cooldown: 3s.

Sustained firing while Gunzerking, increases your Fire Rate and Reload Speed.

Fire Rate: up to +88%
‍Reload Speed: up to +25%

Increases your Maximum Health and grants you Health Regeneration.

Taking enemy damage increases your Movement Speed and Reload Speed for a short time.
Taking damage before the duration ends resets the duration.

Duration: 5s

Reduces the duration of elemental Status Effects applied to you.

Killing an enemy grants you Damage Resistance* for a short time.

Duration: 7s

*Excluding Slag Damage Resistance.

While Gunzerking, you Regenerate a percentage of your Missing Health.

Press [melee] to throw a punch, dealing increased damage and knocking back the enemy.

Damage: +300%
Cooldown: 15s

While your Shield is empty, you gain increased Fire Rate.

While Gunzerking you gain increased Movement Speed.

Increases your Gun Damage.
The lower your health, the greater the bonus.

Taking damage grants you Health Regeneration for a short time.

Duration: 5s

Once while Gunzerking you can press [action-skill] to taunt enemies and restore 100% of your Health. Taunted enemies are more likely to attack you.

Additionally, you gain Damage Resistance for a short time.

Damage Resistance: +100%
‍Duration: 8s