Choose the boss whose reward preview matches the Core Skill material needed by your Agent.
HIA Club VR Training, Expert Challenge.
Expert Challenge bosses provide different Core Skill materials. The efficient route is to inspect each reward preview, select the boss matching the target Agent’s upgrade requirement, and claim the result. This is a Battery Charge activity, so verify both the item name and the Agent’s current need before committing to repeated clears.
This is a repeatable Battery Charge farm. Repeat the matching boss stage as needed for the Agent’s planned Core Skill upgrade; there is no need to clear unrelated bosses for this target.
Stop when your stock covers the intended Core Skill upgrade or switch to another boss if a different Agent requires a different material.
HIA Club VR Training, Expert Challenge.
More guides for gathering materials and making progress.
Spend Battery Charge on the promotion seals needed to raise an Agent’s level cap.
Farm the specific Agent Skill materials required to level an Agent’s combat abilities.
Collect the modification materials needed to raise a W-Engine’s level cap.
Claim the weekly no-Battery Notorious Hunt rewards for the boss material your Agent needs.
