Mercenary skills are trained by Jaimon in Levant.
List of Skills
Tier 1: Universal Skills
The universal Mercenary skills can be acquired by anyone, without having to learn the class breakthrough skill.
Required: Pistol, Iron Scraps
Load a bullet with high Impact which also inflicts Pain
Shooting it requires the use of the Fire/Reload skill.
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.
50 
| Passive
| PassiveYou repair your equipment 50% faster when you allocate time to Repairing in the rest menu.
Tier 2: Breakthrough Skill
Learning this skill will let you learn more advanced Mercenary skills, but keep in mind that you can only specialize in three classes and your choice of specialization is permanent.
Tier 3: Specialization Skills
More advanced skills for those that specialize as a Mercenary. The skills Shield Infusion and Blood Bullet are mutually exclusive - when you choose one, you can never learn the other.
600 | 5 
| 60 seconds 
| 5 | 60 seconds Block an elemental attack. When you next block, an elemental explosion will burst from you.
600 | 12 
| 30 seconds
| 12 | 30 seconds 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.