diff --git a/hwe/sammo/ActionItem/che_농성_위공자병법.php b/hwe/sammo/ActionItem/che_농성_위공자병법.php
new file mode 100644
index 00000000..4b942b9f
--- /dev/null
+++ b/hwe/sammo/ActionItem/che_농성_위공자병법.php
@@ -0,0 +1,27 @@
+<?php
+namespace sammo\ActionItem;
+use \sammo\iAction;
+use \sammo\General;
+use sammo\WarUnit;
+
+class che_농성_위공자병법 extends \sammo\BaseItem{
+
+    protected $rawName = '위공자병법';
+    protected $name = '위공자병법(농성)';
+    protected $info = '[계략] 장수 주둔 도시 화계·탈취·파괴·선동 : 성공률 -30%p<br>[전투] 상대 계략 시도 확률 -10%p, 상대 계략 성공 확률 -10%p';
+    protected $cost = 200;
+    protected $consumable = false;
+
+    public function onCalcStat(General $general, string $statName, $value, $aux=null){
+        if($statName === 'sabotageDefence'){
+            return $value + 0.3;
+        }
+        if($statName === 'warMagicTrialProb'){
+            return $value - 0.1;
+        }
+        if($statName === 'warMagicSuccessProb'){
+            return $value - 0.1;
+        }
+        return $value;
+    }
+}
diff --git a/hwe/sammo/ActionItem/che_농성_주서음부.php b/hwe/sammo/ActionItem/che_농성_주서음부.php
new file mode 100644
index 00000000..76fea855
--- /dev/null
+++ b/hwe/sammo/ActionItem/che_농성_주서음부.php
@@ -0,0 +1,27 @@
+<?php
+namespace sammo\ActionItem;
+use \sammo\iAction;
+use \sammo\General;
+use sammo\WarUnit;
+
+class che_농성_주서음부 extends \sammo\BaseItem{
+
+    protected $rawName = '주서음부';
+    protected $name = '주서음부(농성)';
+    protected $info = '[계략] 장수 주둔 도시 화계·탈취·파괴·선동 : 성공률 -30%p<br>[전투] 상대 계략 시도 확률 -10%p, 상대 계략 성공 확률 -10%p';
+    protected $cost = 200;
+    protected $consumable = false;
+
+    public function onCalcStat(General $general, string $statName, $value, $aux=null){
+        if($statName === 'sabotageDefence'){
+            return $value + 0.3;
+        }
+        if($statName === 'warMagicTrialProb'){
+            return $value - 0.1;
+        }
+        if($statName === 'warMagicSuccessProb'){
+            return $value - 0.1;
+        }
+        return $value;
+    }
+}
diff --git a/hwe/sammo/Command/General/che_화계.php b/hwe/sammo/Command/General/che_화계.php
index 7053ab04..135dc670 100644
--- a/hwe/sammo/Command/General/che_화계.php
+++ b/hwe/sammo/Command/General/che_화계.php
@@ -76,6 +76,7 @@ class che_화계 extends Command\GeneralCommand
         $destNationID = $destNation['nation'];
 
         $maxGenScore = 0;
+        $probCorrection = 0;
         foreach ($destCityGeneralList as $destGeneral) {
             /** @var General $destGeneral */
             if ($destGeneral->getNationID() != $destNationID) {
@@ -92,9 +93,11 @@ class che_화계 extends Command\GeneralCommand
                 throw new \sammo\MustNotBeReachedException();
             }
             $maxGenScore = max($maxGenScore, $genScore);
+            $probCorrection = $destGeneral->onCalcStat($destGeneral, 'sabotageDefence', $probCorrection);
         }
 
         $prob = $maxGenScore / GameConst::$sabotageProbCoefByStat;
+        $prob += $probCorrection;
 
         $prob += $destCity['secu'] / $destCity['secu_max'] / 5; //최대 20%p
         $prob += $destCity['supply'] ? 0.1 : 0;