Before joining the battlefield, players are requested to select 2 skills in addition to choosing a hero. Each skill belongs to a different kind of skill sets, which requires players to make decisions more carefully to use them effectively.
Skills in Thetan Arena are categorized into 3 different skill sets based on their main attributes. Each skill set is also divided into 3 different levels of rarity which are default, rare and mythical.
3 skill sets include:
Effect Skill: Inflicting status on self, allies, and enemies.
Damage Skill: Used to greatly increase the amount of damage in a short period.
Support Skill: Aiding you against attacks of enemies.
Every week, there are randomized 15 skills to be selected in the skill pool. Players can only choose the skills which are available. The skill pool will be refreshed weekly.