message: Siege Elephant: +1 strength, +25% against Archers and Gunpowder instead of +50% extra city attack
diff: </UnitAI>
  </UnitAIs>
  <PrereqTech>TECH_GUNPOWDER</PrereqTech>
  - <BonusType>BONUS_IRON</BonusType>
  - <PrereqBonuses>
  <BonusType>BONUS_IVORY</BonusType>
  + <PrereqBonuses>
  + <BonusType>BONUS_COPPER</BonusType>
  + <BonusType>BONUS_IRON</BonusType>
  </PrereqBonuses>
  <iCost>120</iCost>
  <iAdvancedStartCost>100</iAdvancedStartCost>
  <bFeatureImpassable>1</bFeatureImpassable>
  </FeatureImpassable>
  </FeatureImpassables>
  - <iCombat>5</iCombat>
  + <iCombat>6</iCombat>
  <iCombatLimit>50</iCombatLimit>
  <iXPValueAttack>4</iXPValueAttack>
  <iXPValueDefense>2</iXPValueDefense>
  <iCollateralDamage>100</iCollateralDamage>
  <iCollateralDamageLimit>50</iCollateralDamageLimit>
  <iCollateralDamageMaxUnits>3</iCollateralDamageMaxUnits>
  - <iCityAttack>150</iCityAttack>
  + <iCityAttack>100</iCityAttack>
  <UnitCombatCollateralImmunes>
  <UnitCombatCollateralImmune>
  <UnitCombatType>UNITCOMBAT_SIEGE</UnitCombatType>
  <iUnitCombatCollateralImmune>1</iUnitCombatCollateralImmune>
  </UnitCombatCollateralImmune>
  </UnitCombatCollateralImmunes>
  + <UnitCombatMods>
  + <UnitCombatMod>
  + <UnitCombatType>UNITCOMBAT_ARCHER</UnitCombatType>
  + <iUnitCombatMod>25</iUnitCombatMod>
  + </UnitCombatMod>
  + <UnitCombatMod>
  + <UnitCombatType>UNITCOMBAT_GUN</UnitCombatType>
  + <iUnitCombatMod>25</iUnitCombatMod>
  + </UnitCombatMod>
  + </UnitCombatMods>
  <iBombardRate>12</iBombardRate>
  <iCultureGarrison>7</iCultureGarrison>
  <iAsset>3</iAsset>
  