Say you have a weapon that has a secondary effect besides attacking (i.e. Parthia, Sword of Seals, etc.)
If you give it to a unit who CANNOT use the weapon, can they use the secondary effect?
Example: If I give the Parthia to a Paladin Abel, can he still boost his res +7 with it?
Another one: If I give the Sword of Seals to Lugh, can he still heal his hp with it?