diff --git a/1.5/1.5/Assemblies/DragonianMix.dll b/1.5/1.5/Assemblies/DragonianMix.dll
index bcb1e3f..da373a8 100644
Binary files a/1.5/1.5/Assemblies/DragonianMix.dll and b/1.5/1.5/Assemblies/DragonianMix.dll differ
diff --git a/1.5/1.5/Assemblies/DragonianMix.pdb b/1.5/1.5/Assemblies/DragonianMix.pdb
index 429fe2e..f9d21ea 100644
Binary files a/1.5/1.5/Assemblies/DragonianMix.pdb and b/1.5/1.5/Assemblies/DragonianMix.pdb differ
diff --git a/1.5/1.5/Defs/SoundDefs/DRM_SoundDefs.xml b/1.5/1.5/Defs/SoundDefs/DRM_SoundDefs.xml
index 6262a3c..7f53df5 100644
--- a/1.5/1.5/Defs/SoundDefs/DRM_SoundDefs.xml
+++ b/1.5/1.5/Defs/SoundDefs/DRM_SoundDefs.xml
@@ -7,12 +7,6 @@
     <subSounds>
       <li>
         <grains>
-          <li Class="AudioGrain_Clip">
-            <clipPath>SUTeslaStorm_expa</clipPath>
-          </li>
-          <li Class="AudioGrain_Clip">
-            <clipPath>SUTeslaStorm_expb</clipPath>
-          </li>
           <li Class="AudioGrain_Clip">
             <clipPath>SUTeslaStorm_expc</clipPath>
           </li>
diff --git a/1.5/1.5/Defs/ThingDefs/DR_Weapon.xml b/1.5/1.5/Defs/ThingDefs/DR_Weapon.xml
index 4420200..e18a768 100644
--- a/1.5/1.5/Defs/ThingDefs/DR_Weapon.xml
+++ b/1.5/1.5/Defs/ThingDefs/DR_Weapon.xml
@@ -451,7 +451,7 @@
 
 	  <ThingDef ParentName="BaseProjectileNeolithic">
 		<defName>DRM_Spear_Thrown</defName>
-		<label>pilum</label>
+		<label>Spear</label>
 		<graphicData>
 		  <texPath>Dragonian/Projectile/Spear</texPath>
 		  <graphicClass>Graphic_Single</graphicClass>
@@ -462,6 +462,97 @@
 		  <stoppingPower>2.5</stoppingPower>
 		  <speed>90</speed>
 		</projectile>
-	  </ThingDef>	  
+	  </ThingDef>
+	  
+	  <ThingDef ParentName="BaseMeleeWeapon_Sharp_Quality">
+		<defName>DR_ClusterSpear</defName>
+		<label>Dragonian Cluster Spear</label>
+		<description>Pila are spears for throwing. They take a long time to throw, but one hit can do heavy damage. This weapon can throw a cluster spear at one time.</description>
+		<graphicData>
+			<texPath>Dragonian/Projectile/IkwaThing</texPath>
+			<graphicClass>Graphic_Single</graphicClass>
+		</graphicData>
+		<techLevel>Medieval</techLevel>
+		<soundInteract>Interact_BeatFire</soundInteract>
+		<costList>
+			<WoolDragonian>20</WoolDragonian>
+		</costList>
+		<costStuffCount>80</costStuffCount>
+		<stuffCategories>
+			<li>Metallic</li>
+		</stuffCategories>
+		<relicChance>0</relicChance>
+		<statBases>
+		  <WorkToMake>7000</WorkToMake>
+		  <Mass>4</Mass>
+		  <AccuracyTouch>0.55</AccuracyTouch>
+		  <AccuracyShort>0.65</AccuracyShort>
+		  <AccuracyMedium>0.55</AccuracyMedium>
+		  <AccuracyLong>0.45</AccuracyLong>
+		  <RangedWeapon_Cooldown>1.7</RangedWeapon_Cooldown>
+		</statBases>
+		<weaponTags>
+			<li>DR_BattlePila</li>
+		</weaponTags>
+		<weaponClasses>
+		  <li>Ranged</li>
+		</weaponClasses>
+		<recipeMaker>
+			<skillRequirements>
+				<Crafting>10</Crafting>
+			</skillRequirements>
+		</recipeMaker>
+		<verbs>
+		  <li>
+			<verbClass>DragonianMix.Verb_ShootShotgun</verbClass>
+			<hasStandardCommand>true</hasStandardCommand>
+			<defaultProjectile>DRM_ShortSpear_Thrown</defaultProjectile>
+			<warmupTime>0.4</warmupTime>
+			<range>14.9</range>
+			<burstShotCount>2</burstShotCount>
+			<ticksBetweenBurstShots>16</ticksBetweenBurstShots>
+			<soundCast>Interact_BeatFire</soundCast>
+			<rangedFireRulepack>Combat_RangedFire_Thrown</rangedFireRulepack>
+		  </li>
+		</verbs>
+		<tools>
+		  <li>
+			<label>shaft</label>
+			<capacities>
+			  <li>Blunt</li>
+			</capacities>
+			<power>9</power>
+			 <cooldownTime>2</cooldownTime>
+		  </li>
+		  <li>
+			<label>point</label>
+			<capacities>
+			  <li>Stab</li>
+			</capacities>
+			<power>20</power>
+			 <cooldownTime>2</cooldownTime>
+		  </li>
+		</tools>
+	  </ThingDef>
+
+	  <ThingDef ParentName="BaseProjectileNeolithic">
+		<defName>DRM_ShortSpear_Thrown</defName>
+		<label>Spear</label>
+		<graphicData>
+		  <texPath>Dragonian/Projectile/Ikwa</texPath>
+		  <graphicClass>Graphic_Single</graphicClass>
+		</graphicData>
+		<projectile>
+		  <damageDef>DRM_RangedStab</damageDef>
+		  <damageAmountBase>8</damageAmountBase>
+		  <stoppingPower>2.5</stoppingPower>
+		  <speed>90</speed>
+		</projectile>
+		<modExtensions>
+			<li Class="DragonianMix.ShotgunExtension">
+				<pelletCount>3</pelletCount>
+			</li>
+		</modExtensions>
+	  </ThingDef>
 
 </Defs>
\ No newline at end of file
diff --git a/1.5/1.5/Languages/ChineseSimplified (简体中文)/Definjected/ThingDef/ThingDefs_DRM_Weapon.xml b/1.5/1.5/Languages/ChineseSimplified (简体中文)/Definjected/ThingDef/ThingDefs_DRM_Weapon.xml
index 8441515..f16bc30 100644
--- a/1.5/1.5/Languages/ChineseSimplified (简体中文)/Definjected/ThingDef/ThingDefs_DRM_Weapon.xml	
+++ b/1.5/1.5/Languages/ChineseSimplified (简体中文)/Definjected/ThingDef/ThingDefs_DRM_Weapon.xml	
@@ -22,5 +22,12 @@
   <DR_BattleSpear.tools.point.label>矛尖</DR_BattleSpear.tools.point.label>
 
   <DRM_Spear_Thrown.label>飞矛</DRM_Spear_Thrown.label>
+
+  <DR_ClusterSpear.label>龙娘 集束飞矛</DR_ClusterSpear.label>
+  <DR_ClusterSpear.description>龙娘使用的一捆飞矛。这种武器一次能扔出一捆短矛。</DR_ClusterSpear.description>
+  <DR_ClusterSpear.tools.shaft.label>杆</DR_ClusterSpear.tools.shaft.label>
+  <DR_ClusterSpear.tools.point.label>矛尖</DR_ClusterSpear.tools.point.label>
+
+  <DRM_ShortSpear_Thrown.label>飞矛</DRM_ShortSpear_Thrown.label>
   
 </LanguageData>
\ No newline at end of file
diff --git a/Content/Sounds/SUTeslaStorm_expa.wav b/Content/Sounds/SUTeslaStorm_expa.wav
deleted file mode 100644
index f0495e5..0000000
Binary files a/Content/Sounds/SUTeslaStorm_expa.wav and /dev/null differ
diff --git a/Content/Sounds/SUTeslaStorm_expb.wav b/Content/Sounds/SUTeslaStorm_expb.wav
deleted file mode 100644
index 73b5a86..0000000
Binary files a/Content/Sounds/SUTeslaStorm_expb.wav and /dev/null differ
diff --git a/Content/Textures/Dragonian/Projectile/Ikwa.png b/Content/Textures/Dragonian/Projectile/Ikwa.png
new file mode 100644
index 0000000..6886a0d
Binary files /dev/null and b/Content/Textures/Dragonian/Projectile/Ikwa.png differ
diff --git a/Content/Textures/Dragonian/Projectile/IkwaThing.png b/Content/Textures/Dragonian/Projectile/IkwaThing.png
new file mode 100644
index 0000000..81f73ce
Binary files /dev/null and b/Content/Textures/Dragonian/Projectile/IkwaThing.png differ