Index: binaries/data/mods/public/simulation/data/civs/ptol.json
===================================================================
--- binaries/data/mods/public/simulation/data/civs/ptol.json
+++ binaries/data/mods/public/simulation/data/civs/ptol.json
@@ -30,8 +30,8 @@
 	"CivBonuses": [
 		{
 			"Name": "Polybolos",
-			"History": "",
-			"Description": "Bolt Shooters −33% attack damage and −33% attack time."
+			"History": "The polybolos would have differed from an ordinary ballista in that it had a wooden hopper magazine, capable of holding several dozen bolts, that was positioned over the mensa (the cradle that holds the bolt prior to firing). The mechanism is unique in that it is driven by a flat-link chain connected to a windlass.",
+			"Description": "Bolt Shooters −33% attack time, but +20% wood cost."
 		},
 		{
 			"Name": "Nile Delta",
Index: binaries/data/mods/public/simulation/templates/units/ptol/siege_polybolos_packed.xml
===================================================================
--- binaries/data/mods/public/simulation/templates/units/ptol/siege_polybolos_packed.xml
+++ binaries/data/mods/public/simulation/templates/units/ptol/siege_polybolos_packed.xml
@@ -2,23 +2,22 @@
 <Entity parent="template_unit_siege_boltshooter">
   <Attack>
     <Ranged>
-      <Damage>
-        <Pierce>160</Pierce>
-      </Damage>
-      <PrepareTime>2000</PrepareTime>
       <RepeatTime>4000</RepeatTime>
-      <Splash>
-        <Damage>
-          <Pierce>50</Pierce>
-        </Damage>
-      </Splash>
     </Ranged>
   </Attack>
+  <Cost>
+    <Resources>
+      <wood op="add">50</wood>
+    </Resources>
+  </Cost>
   <Identity>
     <Civ>ptol</Civ>
     <SpecificName>Polybolos</SpecificName>
     <Icon>units/hele/siege_oxybeles_packed.png</Icon>
   </Identity>
+  <Loot>
+    <wood op="add">10</wood>
+  </Loot>
   <Pack>
     <Entity>units/ptol/siege_polybolos_unpacked</Entity>
     <State>packed</State>