Secondary weapons

I'd like to know how to use them, that's it

 

Shield:
base attack speed is reduced by 50%
(can be restored with Shield Mastery)
Refinement reduces all damage taken, like on armor and additional gear.
Guard Power bonus of Heavy Armor does not apply.

Dagger:
no negative side effects.
Weapon Atk only applies to dagger skills (not assassin).

Arrow:
base defense and magic defense is reduced by 25%.
Weapon Atk increases attack of Bows, Stability is applies to Bows.
Bowguns get only half of those, to other weapons it does not apply.
the other stats are available to all weapons if they are not restricted to Bow or Bowgun.

Knuckle:
base magic attack is reduced by 15%.
Weapon Atk, Stability and stats do not apply.
you get the weapon bonus of Knuckle for attack skills (not passive skills).

Magic Device:
base attack is decreased by 15%. (can be lowered to 5% with Magic Warrior Mastery)
Weapon Atk, Stability and stats do not apply.
you get the weapon bonus of Magic Device for magic skills (except Magic Mastery) if your main weapon is not a Staff.

Katana:
Weapon Atk, Stability and stats do not apply.
you get the weapon bonus of Katana for attack skills.

1h Sword:
your weapon becomes Dual Swords and your attack movement and stat growth changes.
base hit and critical rate are reduced by 15%. (can be restored and increased with Dual Sword Mastery and Dual Sword Control)
Weapon Atk, Stability and Element apply to the sub-hand attack and Dual Sword skills.
Stability on the sub-hand is halved.

 

just equip them.