Weapon

Common

Aquatic. You do not have DisADV on attacks made using aquatic weapons as a result of being underwater.
Light. A light weapon is small and easy to handle. You can use either your Strength or Dexterity modifier for both the attack and damage rolls.
The Finesse property has been combined with the Light property. Anything that would require Finesse (like the Rogue Sneak Attack feature) and any weapon that uses Dexterity for its attack and damage rolls works with this property.
Rapier. You can choose to deal Slashing or Piercing damage.
Piercing. On a critical hit, the target becomes Impaired until the end of your next turn.
-or-
Slashing. On a critical hit, the target gains the Bleeding condition.

Martial Special Attacks

When you land any attack in combat you can choose to make it a Special Attack by expending one of your extra attacks. The additional bonuses below are either added immediately to the attack you just landed for extra effects OR expended before you make the attack for ONE all-in strike.
Each of these Martial Special Attacks have certain requirements and if the target needs to make a save, it's always against your Martial Save DC.

Thrust. When you make an attack, you can forgo 1 extra attack to lunge with your weapon. The reach of the attack is increased by 5ft and it deals 1 extra die of damage.
Feint. When you make a weapon attack, you can forgo 1 extra attack to make a Deception Check vs the target's Insight Check. Success. You gain ADV on your attack roll and deal 1 extra die of damage on the attack.
Martial Save DC. (8 + prof. bonus + Strength or Dexterity modifier)
Stagger (Combo). On a hit, you can forgo 1 extra attack to force the target to make a Con Save. Failure. The target becomes Vulnerable to the next source of Slashing, Piercing, or Bludgeoning damage before the start of your next turn. You can only do this once per combat.
Martial Save DC. (8 + prof. bonus + Strength or Dexterity modifier)