Flurry of Blows 
Feature 1
Make two unarmed Strikes. If both hit the same creature, combine their damage for the purpose of resistances and weaknesses. Apply your multiple attack penalty to the Strikes normally. As a flourish ability, you can use Flurry of Blows only once per turn.
Traits
Anything that doesn't list another rarity trait (uncommon, rare, or unique) automatically has the common trait. This rarity indicates that an ability, item, or spell is available to all players who meet the prerequisites for it. A creature of this rarity is generally known and can be summoned with the appropriate summon spell.
FlourishActions with the flourish trait are special techniques that require too much exertion for you to perform frequently. You can use only one action with the flourish trait per round.
MonkAbilities with this trait are from the monk class. A weapon with this trait is primarily used by monks.