[FOCI]

Cypher System Rulebook
You can hold a weapon in both hands, ready to take on any foe. You fight with two weapons in combat, sometimes called dual wielding. Your weapons can be melee or ranged. A fearsome warrior, quick and strong, you believe that the best defense is a strong offense.
You probably sheathe one weapon on each side or wear both crossed behind your back. They are likely your most prized possessions, and you might have names for them.
Dual wielders are most often vectors.
If this is your starting focus, choose one of the following connections.
The target is intimidated and flees as its next action.
You can make an immediate additional attack with one of your weapons.
You can use two light weapons at the same time, making two separate attacks on your turn as a single action. You remain limited by the amount of Effort you can apply on one action, but because you make separate attacks, your opponent's Armor applies to both. Anything that modifies your attack or damage applies to both attacks, unless it's specifically tied to one of the weapons.
When you wield two weapons, you can choose to make one attack roll against a foe. If you hit, you inflict damage with both weapons plus 2 additional points of damage, and because you made a single attack, the target's Armor is subtracted only once.
You are trained in interactions involving lies or trickery.
You can use two light weapons or medium weapons at the same time (or one light weapon and one medium weapon), making two separate attacks on your turn as a singleAction. This ability otherwise works like the Dual Light Wield ability.
or
You inflict 1 additional point of damage with light weapons.
When you wield two weapons, you are trained in Speed defense tasks.
When you wield two weapons, your opponent's next attack is hindered, and if you apply Effort on your next attack against that same foe, you get a free level of Effort on the task.
Your attack inflicts 1 point less damage and disarms your foe so that their weapon is now 10 feet (3 m) away on the ground. (If your chosen weapon is a whip, you can instead deposit the disarmed weapon into your hands; if your chosen weapon is a bow or other ranged weapon that fires physical rounds, you can instead “nail” the disarmed weapon to a nearby object or structure. Choosing to do either of these hinders your attack.)
or
You stand still and make attacks against up to five foes, all as part of the same action in one round. All of the attacks have to be the same sort of attack (melee or ranged). Make a separate attack roll for each foe. You remain limited by the amount of Effort you can apply on oneAction. Anything that modifies your attack or damage applies to all of these attacks. In addition to the normal options for using Effort, you can choose to use Effort to increase the number of foes you can attack with this ability (one additional foe per level of Effort used in this way).
GM Intrusions: With so many strikes and slices, it's easy to imagine a blade snapping in two or a weapon flying loose from its bearer's grip.