Combat Style
The Combat Style tab shows the follower’s combat style.
The player is not AI-controlled, and therefore has no combat style.

Combat style determines how the AI picks attacks. In the example, Magic is set to 10 / 10, while Ranged is set to 0.55 / 10. The AI will therefore heavily prefer magic over ranged attacks.
Dual-wielding
Combat style also determines whether a follower can dual-wield.

Dual-wielding only applies to melee weapons. Having a sword in one hand and a staff in the other does not qualify as dual-wielding.
In Settings, the requirement to have the right combat style to dual-wield can be removed.
