For an explanation of how the skill tier system works, see Overview.
|Shatter Bullet||Required: Pistol, Iron Scraps Load a bullet with high Impact which also inflicts Pain. Shooting it requires the use of the Fire/Reload skill. 5s cooldown.||Active||50 Silver|
|Frost Bullet||Required: Pistol, Cool Boon Load the pistol with a bullet that makes a short-distance blast which slows enemies. Removes your Cool boon. Shooting it requires use of the Fire/Reload skill. 5s cooldown.||Active||100 Silver|
|Fast Maintenance||You repair your equipment 50% faster when you allocate time to Repairing in the rest menu.||Passive||50 Silver|
|Armor Training||Decreases the stamina and movement penalties from wearing armor by 50%.||Passive||100 Silver|
|Swift Foot||Your movement speed is increased by 10%||Passive||500 Silver, 1 Breakthrough Point|
|Marathoner||Sprinting consumes 40% less stamina.||Passive||600 Silver|
|Shield Infusion||Block an elemental attack. When you next block, an elemental explosion will burst from you. Consumes 5 Stamina. 60s cooldown.||Active||600 Silver|
|Blood Bullet||Required: Pistol, Possessed Boon. Absorb the enemy’s life into your pistol as a blood bullet, healing yourself. Shooting it requires the use of the Fire/Reload skill. Consumes 12 Mana.||Active||600 Silver|
Note: The following skills are mutually exclusive:
Shield Infusion and Blood Bullet
This means that if you learn Shield Infusion, you can never learn Blood Bullet, and vice versa.