How to Upgrade Combat Skills and Required Materials

This guide explains how to upgrade Combat Skills in Arknights: Endfield, including the required materials to upgrade combat skills, the benefits and tips.

How to Upgrade Combat Skills

Open 'Operators' from the Menu

From the Menu, tap on the 'Operators' icon.

Select a Character and Tap 'Ability Matrix'

Select a Character you want to upgrade and choose 'Ability Matrix'.

Select a Combat Skill and Upgrade

Select the Combat Skill you want to enhance, then choose 'Upgrade' to increase its level.

Unlocked in Stages With Each Promotion

Combat Skills require a Promotion every three stages. After reaching the Stage Cap, Level Up the Character and increase their Promotion level before further upgrading Combat Skills.

Required Combat Skill Materials

T-Creds	Protoprism	Protohedron
Kalkodendra	Chrysodendra	Etc.

Combat Skill Upgrades in Endfield require 'Chrysodendra', 'Protoprism', 'Protohedron', and 'T-Creds'. For Promotions, 'Protodisk' materials are used in the early game, while 'Protoset' materials are required in the late game.

Combat Skills Upgrade Benefits

Combat Skills Upgrade

The benefit of upgrading Combat Skills in Endfield is that it enhances Basic Attacks, Battle Skills, Combo Skills, and Ultimates. The increase, such as the attack multiplier, is very significant, so these upgrades should be actively prioritized.

Related Arknights: Endfield Articles

Character Enhancement and Leveling

Character Enhancement Guide	Promotion Guide	Combat Skills Upgrade
Talents and Base Skills	How to Increase Potential	How to Raise Trust
Weapon Enhancement Guide	Recommended Weapons	How to Craft Gear
Essence Selection

Tier Lists and Rankings

Best Characters Tier List	Best Weapons Tier List	Best Team Comps
Reroll Tier List	How to Reroll Guide	-