Dual Wielding

I managed to make a an off hand weapon that adds damage and dodge. Just set the Type to Defense and the Attachment point to the left hand instead of right. There does not appear to be any way to make it attack twice or make weapons that can be equipped in either hand. Here is what my XML looks like.

Code: xml
</p><GameItemType InternalName="Parrying Dagger">
     <DisplayName>Parrying Dagger</DisplayName>
     <Description>An off hand dagger designed to deflect incoming blows.</Description>
     <Type>Defense</Type>
      <WeaponType>Dagger</WeaponType>
      <CanBeEquipped>1</CanBeEquipped>
      <ShopValue>150</ShopValue>
      <GameModifier>
      <ModType>Unit</ModType>
      <Attribute>AdjustUnitStat</Attribute>
      <StrVal>UnitStat_CurrentWeight</StrVal>
      <Value>0</Value>
      </GameModifier>
           <GameModifier>
           <ModType>Unit</ModType>
           <Attribute>AdjustUnitStat</Attribute>
           <StrVal>UnitStat_Dodge</StrVal>
      <Value>10</Value>
      </GameModifier>
           <GameModifier>
           <ModType>Unit</ModType>
           <Attribute>AdjustUnitStat</Attribute>
           <StrVal>UnitStat_Attack_Pierce</StrVal>
           <Value>4</Value>
      </GameModifier>
     <GameModifier>
          <ModType>Unit</ModType>
          <Attribute>AdjustUnitStat</Attribute>
          <StrVal>UnitStat_MaxCounterAttack</StrVal>
          <Value>1</Value>
          <Provides>+1 Counterattack per round</Provides>
     </GameModifier>
     <IsAvailableForSovereignCustomization>1</IsAvailableForSovereignCustomization>
     <IsAvailableForUnitDesign>0</IsAvailableForUnitDesign>
     <Likelihood>200</Likelihood>
     <RarityDisplay>Uncommon</RarityDisplay>
     <AIData AIPersonality="AI_General">
          <AIPriority>14</AIPriority>
     </AIData>
     <ArtDef>Dagger_ArtDef</ArtDef>
     <GameItemTypeArtDef InternalName="Parrying_Dagger_ArtDef">
               <GameItemTypeModelPack InternalName="Parrying_Dagger_Default">
                    <IconFile>Parrying_Dagger.png</IconFile>
                     <TintR>207</TintR>
                     <TintG>53</TintG>
                     <TintB>16</TintB>
                     <GameItemTypeModel>
                     <ModelFile>Gfx\HKB\Weapons\W_Dagger_01.hkb</ModelFile>
                     <Texture_All>gfx/hkb/Weapons/FE_Weapons_01.png</Texture_All>
                     <Attachment>hand_left_Lcf</Attachment>
               </GameItemTypeModel>
          </GameItemTypeModelPack>
     </GameItemTypeArtDef>
 </GameItemType>