Core Skill

Core Skill is refers to buffs provided to Agents.
==Core Passive==
Core Passives are upgradeable buffs, and that also boosts a certain stat of an Agent. In all cases, the base stat for Attack raises by 25. To upgrade this skill, the player must gain materials from Notorious Hunts and Expert Challenge. The stat can only be upgraded six times.
==Additional Ability==
Additional Ability is a buff granted to Agents when another Agent shares the same Faction or Attribute. Combat Bangboo also have Additional Ability, which can be upgraded through core upgrades.