Off-hand Weapon Properties

[Atreides]

If someone is wielding two weapons, do they gain any property bonuses from the other 'other' weapon when attacking with the primary weapon.

For instance, a Rogue wielding a Frost blade and a Subtle dagger who attacks with the Frost blade - do they gain the damage bonus from the subtle dagger if they fulfill the requirement of attacking someone with Combat Advantage?

Sorcerer is another example - can they wield a frost dagger and a Staff of Ruin and gain the Staff bonus property when attacking with the dagger?

Thanks!

 

[Kordeth]

If someone is wielding two weapons, do they gain any property bonuses from the other 'other' weapon when attacking with the primary weapon.

For instance, a Rogue wielding a Frost blade and a Subtle dagger who attacks with the Frost blade - do they gain the damage bonus from the subtle dagger if they fulfill the requirement of attacking someone with Combat Advantage?

Sorcerer is another example - can they wield a frost dagger and a Staff of Ruin and gain the Staff bonus property when attacking with the dagger?

Thanks!

Unless the weapon's property specifically says otherwise, it only applies to the weapon it's attached to (that was clarified on p. 56 of Adventurer's Vault). So no, you can't pull this trick. If you had a weapon whose property was, for example, "gain +2 to all saving throws while you wield this weapon," you could benefit from that.