You only gain the benefits of a weapon style if you are proficient with the weapon.
Axe:
When you Attack a creature with an axe, you gain a bonus to your
damage equal to your Prof. Bonus if the target is
Bloodied or
Bleeding . (
Campaign 3 Conditions )
Bow:
When you Attack a creature with a bow, you gain a bonus to your
damage equal to your Prof. Bonus if the target is farther than 30ft away from you.
Chained:
When you Attack a creature with a chained weapon, you gain a bonus to your
Attack and damage equal to your Prof. Bonus if the target is wielding a shield or is behind 1/2 cover.
Crossbow:
When you Attack a creature with a crossbow, you gain a bonus to your
damage equal to your Prof. Bonus if the target is within 15ft of you.
Hammer:
When you Attack a creature with a hammer, you gain a bonus to your
damage equal to your Prof. Bonus if the target is Prone, Petrified or wearing metal armor. When you Attack an object made of stone, glass, or other similar material with a hammer, your damage deals maximum damage.
Puncture:
When you Attack a creature with a puncture weapon, you gain a bonus to your
damage equal to your Prof. Bonus if the target has 1 or more levels of Exhaustion, its movement has been reduced.
Staff:
You have
ADV on Opportunity Attacks made with a staff when holding it with 2 hands.
Opportunity Attacks made against you have DisADV while you are wielding a staff with 2 hands. When you take the Disengage Action and move away from a creature within your reach,
you can make an Opportunity Attack (but not with ADV) with a staff you are wielding with 2 hands against that creature, before leaving your space.
Sword:
Once per turn when you Attack a creature with a sword, you gain a bonus to your
damage equal to your Prof. Bonus if you’ve damaged the target with an Attack since the start of your last turn. You don’t gain this benefit if you Attack another target during this time. When you Attack an object made of rope, vine, or similar material with a sword, your damage deals maximum damage.
Thrust:
When you Attack a creature with a thrust weapon, you gain a bonus to your
damage equal to your Prof. Bonus if the target is
Impaired , Prone, or Mounted on a creature no more than one size larger than you. (
Campaign 3 Conditions )
Unarmed:
When you Attack a creature with an unarmed weapon or Unarmed Strike, you gain a bonus to your
damage equal to your Prof. Bonus if the target is Grappled by you.
Whip:
When you Attack a creature with a whip, you gain a bonus to your
damage equal to your Prof. Bonus if the target is farther than 5ft away from you.
