Venomous Mastery
The players could level up through the process called Mastery Breakthrough. A player's mastery of the skill would increase every time the player used it, allowing the skill to level up automatically.
Kaelen had increased his Stealth, Fatal Ambush, Sprint, and Soulreave Venom skills through Mastery Breakthrough.
This process also happened to be the most common and easiest way for players to level u