diff --git a/hwe/sammo/ActionItem/che_반계_백우선.php b/hwe/sammo/ActionItem/che_반계_백우선.php
index 4e10f5c4..4a38e014 100644
--- a/hwe/sammo/ActionItem/che_반계_백우선.php
+++ b/hwe/sammo/ActionItem/che_반계_백우선.php
@@ -19,9 +19,16 @@ class che_반계_백우선 extends \sammo\BaseItem{
     protected $cost = 200;
     protected $consumable = false;
 
+    public function onCalcOpposeStat(General $general, string $statName, $value, $aux = null)
+    {
+        $debuff = [
+            'warMagicSuccessProb' => 0.1,
+        ][$statName] ?? 0;
+        return $value - $debuff;
+    }
+
     public function getBattlePhaseSkillTriggerList(WarUnit $unit):?WarUnitTriggerCaller{
         return new WarUnitTriggerCaller(
-            new WarActivateSkills($unit, BaseWarUnitTrigger::TYPE_ITEM +BaseWarUnitTrigger::TYPE_DEDUP_TYPE_BASE*301, false, '계략약화'),
             new che_반계시도($unit, BaseWarUnitTrigger::TYPE_ITEM +BaseWarUnitTrigger::TYPE_DEDUP_TYPE_BASE*301),
             new che_반계발동($unit)
         );
diff --git a/hwe/sammo/ActionItem/che_반계_파초선.php b/hwe/sammo/ActionItem/che_반계_파초선.php
index 5c19edfd..3a277e3e 100644
--- a/hwe/sammo/ActionItem/che_반계_파초선.php
+++ b/hwe/sammo/ActionItem/che_반계_파초선.php
@@ -19,9 +19,16 @@ class che_반계_파초선 extends \sammo\BaseItem{
     protected $cost = 200;
     protected $consumable = false;
 
+    public function onCalcOpposeStat(General $general, string $statName, $value, $aux = null)
+    {
+        $debuff = [
+            'warMagicSuccessProb' => 0.1,
+        ][$statName] ?? 0;
+        return $value - $debuff;
+    }
+
     public function getBattlePhaseSkillTriggerList(WarUnit $unit):?WarUnitTriggerCaller{
         return new WarUnitTriggerCaller(
-            new WarActivateSkills($unit, BaseWarUnitTrigger::TYPE_ITEM +BaseWarUnitTrigger::TYPE_DEDUP_TYPE_BASE*302, false, '계략약화'),
             new che_반계시도($unit, BaseWarUnitTrigger::TYPE_ITEM +BaseWarUnitTrigger::TYPE_DEDUP_TYPE_BASE*302),
             new che_반계발동($unit)
         );
diff --git a/hwe/sammo/ActionItem/che_서적_07_논어.php b/hwe/sammo/ActionItem/che_서적_07_논어.php
index c92a5bd8..0212b932 100644
--- a/hwe/sammo/ActionItem/che_서적_07_논어.php
+++ b/hwe/sammo/ActionItem/che_서적_07_논어.php
@@ -18,9 +18,11 @@ class che_서적_07_논어 extends \sammo\BaseStatItem{
         $this->info .= "<br>[전투] 상대의 계략 성공 확률 -10%p";
     }
 
-    public function getBattlePhaseSkillTriggerList(WarUnit $unit):?WarUnitTriggerCaller{
-        return new WarUnitTriggerCaller(
-            new WarActivateSkills($unit, BaseWarUnitTrigger::TYPE_ITEM+BaseWarUnitTrigger::TYPE_DEDUP_TYPE_BASE*207, false, '계략약화')
-        );
+    public function onCalcOpposeStat(General $general, string $statName, $value, $aux = null)
+    {
+        $debuff = [
+            'warMagicSuccessProb' => 0.1,
+        ][$statName] ?? 0;
+        return $value - $debuff;
     }
 }
\ No newline at end of file
diff --git a/hwe/sammo/ActionItem/che_서적_11_춘추전.php b/hwe/sammo/ActionItem/che_서적_11_춘추전.php
index 0fa0ca84..7dc51ae5 100644
--- a/hwe/sammo/ActionItem/che_서적_11_춘추전.php
+++ b/hwe/sammo/ActionItem/che_서적_11_춘추전.php
@@ -18,9 +18,11 @@ class che_서적_11_춘추전 extends \sammo\BaseStatItem{
         $this->info .= "<br>[전투] 상대의 계략 성공 확률 -10%p";
     }
 
-    public function getBattlePhaseSkillTriggerList(WarUnit $unit):?WarUnitTriggerCaller{
-        return new WarUnitTriggerCaller(
-            new WarActivateSkills($unit, BaseWarUnitTrigger::TYPE_ITEM+BaseWarUnitTrigger::TYPE_DEDUP_TYPE_BASE*211, false, '계략약화')
-        );
+    public function onCalcOpposeStat(General $general, string $statName, $value, $aux = null)
+    {
+        $debuff = [
+            'warMagicSuccessProb' => 0.1,
+        ][$statName] ?? 0;
+        return $value - $debuff;
     }
 }
\ No newline at end of file
diff --git a/hwe/sammo/ActionItem/che_치트_HideD의_사인검.php b/hwe/sammo/ActionItem/che_치트_HideD의_사인검.php
index e95310c9..820c372e 100644
--- a/hwe/sammo/ActionItem/che_치트_HideD의_사인검.php
+++ b/hwe/sammo/ActionItem/che_치트_HideD의_사인검.php
@@ -1,5 +1,7 @@
 <?php
+
 namespace sammo\ActionItem;
+
 use \sammo\iAction;
 use \sammo\General;
 use \sammo\GeneralTrigger;
@@ -17,7 +19,8 @@ use sammo\WarUnitTrigger\che_전멸시페이즈증가;
 use sammo\WarUnitTrigger\che_부상무효;
 use sammo\WarUnitTrigger\WarActivateSkills;
 
-class che_치트_HideD의_사인검 extends \sammo\BaseItem{
+class che_치트_HideD의_사인검 extends \sammo\BaseItem
+{
 
     protected $rawName = 'HideD의 사인검';
     protected $name = 'HideD의 사인검(치트)';
@@ -37,33 +40,45 @@ EOT;
     protected $consumable = false;
     protected $buyable = false;
 
-    public function onCalcDomestic(string $turnType, string $varType, float $value, $aux=null):float{
-        if($turnType == '계략'){
-            if($varType == 'success') return $value + 2;
+    public function onCalcDomestic(string $turnType, string $varType, float $value, $aux = null): float
+    {
+        if ($turnType == '계략') {
+            if ($varType == 'success') return $value + 2;
         }
-        
+
         return $value;
     }
 
-    public function onCalcStat(General $general, string $statName, $value, $aux=null){
+    public function onCalcStat(General $general, string $statName, $value, $aux = null)
+    {
         $bonus = [
-            'bonusTrain'=>30,
-            'bonusAtmos'=>30,
-            'leadership'=>100,
-            'strength'=>100,
-            'intel'=>100,
-            'warMagicSuccessProb'=>1,
-        ][$statName]??0;
+            'bonusTrain' => 30,
+            'bonusAtmos' => 30,
+            'leadership' => 100,
+            'strength' => 100,
+            'intel' => 100,
+            'warMagicSuccessProb' => 1,
+        ][$statName] ?? 0;
         return $bonus + $value;
     }
 
-    public function getPreTurnExecuteTriggerList(General $general):?GeneralTriggerCaller{
+    public function onCalcOpposeStat(General $general, string $statName, $value, $aux = null)
+    {
+        $debuff = [
+            'warMagicSuccessProb' => 0.1,
+        ][$statName] ?? 0;
+        return $value - $debuff;
+    }
+
+    public function getPreTurnExecuteTriggerList(General $general): ?GeneralTriggerCaller
+    {
         return new GeneralTriggerCaller(
             new GeneralTrigger\che_도시치료($general)
         );
     }
 
-    public function getBattleInitSkillTriggerList(WarUnit $unit):?WarUnitTriggerCaller{
+    public function getBattleInitSkillTriggerList(WarUnit $unit): ?WarUnitTriggerCaller
+    {
         return new WarUnitTriggerCaller(
             new che_부상무효($unit, BaseWarUnitTrigger::TYPE_NONE),
             new WarActivateSkills($unit, BaseWarUnitTrigger::TYPE_NONE, false, '저격불가')
@@ -73,10 +88,10 @@ EOT;
     public function getBattlePhaseSkillTriggerList(\sammo\WarUnit $unit): ?WarUnitTriggerCaller
     {
         return new WarUnitTriggerCaller(
-            new WarActivateSkills($unit, BaseWarUnitTrigger::TYPE_NONE, false, '필살불가', '위압불가', '격노불가', '계략약화', '저격불가'),
+            new WarActivateSkills($unit, BaseWarUnitTrigger::TYPE_NONE, false, '필살불가', '위압불가', '격노불가', '저격불가'),
             new che_전투치료시도($unit),
             new che_전투치료발동($unit),
-            new che_저격시도($unit, che_저격시도::TYPE_NONE, 1/2, 20, 60),
+            new che_저격시도($unit, che_저격시도::TYPE_NONE, 1 / 2, 20, 60),
             new che_저격발동($unit),
             new che_격노시도($unit),
             new che_격노발동($unit),
@@ -84,8 +99,8 @@ EOT;
         );
     }
 
-    public function getWarPowerMultiplier(WarUnit $unit):array{
+    public function getWarPowerMultiplier(WarUnit $unit): array
+    {
         return [1, 0.95];
     }
-
-}
\ No newline at end of file
+}
diff --git a/hwe/sammo/ActionItem/event_전투특기_반계.php b/hwe/sammo/ActionItem/event_전투특기_반계.php
index 372d4de1..3e2da17a 100644
--- a/hwe/sammo/ActionItem/event_전투특기_반계.php
+++ b/hwe/sammo/ActionItem/event_전투특기_반계.php
@@ -28,9 +28,16 @@ class event_전투특기_반계 extends \sammo\BaseItem{
         return $value;
     }
 
+    public function onCalcOpposeStat(General $general, string $statName, $value, $aux = null)
+    {
+        $debuff = [
+            'warMagicSuccessProb' => 0.1,
+        ][$statName] ?? 0;
+        return $value - $debuff;
+    }
+
     public function getBattlePhaseSkillTriggerList(WarUnit $unit):?WarUnitTriggerCaller{
         return new WarUnitTriggerCaller(
-            new WarActivateSkills($unit, BaseWarUnitTrigger::TYPE_ITEM + BaseWarUnitTrigger::TYPE_DEDUP_TYPE_BASE*401, false, '계략약화'),
             new che_반계시도($unit),
             new che_반계발동($unit)
         );
diff --git a/hwe/sammo/ActionSpecialDomestic/che_event_견고.php b/hwe/sammo/ActionSpecialDomestic/che_event_견고.php
index 902682da..1cd1131d 100644
--- a/hwe/sammo/ActionSpecialDomestic/che_event_견고.php
+++ b/hwe/sammo/ActionSpecialDomestic/che_event_견고.php
@@ -21,6 +21,14 @@ class che_event_견고 extends \sammo\BaseSpecial{
         SpecialityHelper::STAT_STRENGTH
     ];
 
+    public function onCalcOpposeStat(General $general, string $statName, $value, $aux = null)
+    {
+        $debuff = [
+            'warMagicSuccessProb' => 0.1,
+        ][$statName] ?? 0;
+        return $value - $debuff;
+    }
+
     public function getBattleInitSkillTriggerList(WarUnit $unit):?WarUnitTriggerCaller{
         return new WarUnitTriggerCaller(
             new che_부상무효($unit, BaseWarUnitTrigger::TYPE_ITEM),
@@ -30,7 +38,7 @@ class che_event_견고 extends \sammo\BaseSpecial{
 
     public function getBattlePhaseSkillTriggerList(WarUnit $unit):?WarUnitTriggerCaller{
         return new WarUnitTriggerCaller(
-            new WarActivateSkills($unit, BaseWarUnitTrigger::TYPE_ITEM + BaseWarUnitTrigger::TYPE_DEDUP_TYPE_BASE*402, false, '필살불가', '계략약화', '저격불가')
+            new WarActivateSkills($unit, BaseWarUnitTrigger::TYPE_ITEM + BaseWarUnitTrigger::TYPE_DEDUP_TYPE_BASE*402, false, '필살불가', '저격불가')
         );
     }
 
diff --git a/hwe/sammo/ActionSpecialDomestic/che_event_반계.php b/hwe/sammo/ActionSpecialDomestic/che_event_반계.php
index ec5b6c28..4bf5256d 100644
--- a/hwe/sammo/ActionSpecialDomestic/che_event_반계.php
+++ b/hwe/sammo/ActionSpecialDomestic/che_event_반계.php
@@ -33,10 +33,17 @@ class che_event_반계 extends \sammo\BaseSpecial
         return $value;
     }
 
+    public function onCalcOpposeStat(General $general, string $statName, $value, $aux = null)
+    {
+        $debuff = [
+            'warMagicSuccessProb' => 0.1,
+        ][$statName] ?? 0;
+        return $value - $debuff;
+    }
+
     public function getBattlePhaseSkillTriggerList(WarUnit $unit): ?WarUnitTriggerCaller
     {
         return new WarUnitTriggerCaller(
-            new WarActivateSkills($unit, BaseWarUnitTrigger::TYPE_ITEM + BaseWarUnitTrigger::TYPE_DEDUP_TYPE_BASE * 403, false, '계략약화'),
             new che_반계시도($unit),
             new che_반계발동($unit)
         );
diff --git a/hwe/sammo/ActionSpecialWar/che_견고.php b/hwe/sammo/ActionSpecialWar/che_견고.php
index 3e3e0d5b..ed8bd76c 100644
--- a/hwe/sammo/ActionSpecialWar/che_견고.php
+++ b/hwe/sammo/ActionSpecialWar/che_견고.php
@@ -24,6 +24,14 @@ class che_견고 extends \sammo\BaseSpecial
         SpecialityHelper::STAT_STRENGTH
     ];
 
+    public function onCalcOpposeStat(General $general, string $statName, $value, $aux = null)
+    {
+        $debuff = [
+            'warMagicSuccessProb' => 0.1,
+        ][$statName] ?? 0;
+        return $value - $debuff;
+    }
+
     public function getBattleInitSkillTriggerList(WarUnit $unit): ?WarUnitTriggerCaller
     {
         return new WarUnitTriggerCaller(
@@ -35,7 +43,7 @@ class che_견고 extends \sammo\BaseSpecial
     public function getBattlePhaseSkillTriggerList(WarUnit $unit): ?WarUnitTriggerCaller
     {
         return new WarUnitTriggerCaller(
-            new WarActivateSkills($unit, BaseWarUnitTrigger::TYPE_ITEM + BaseWarUnitTrigger::TYPE_DEDUP_TYPE_BASE * 404, false, '필살불가', '계략약화', '저격불가')
+            new WarActivateSkills($unit, BaseWarUnitTrigger::TYPE_ITEM + BaseWarUnitTrigger::TYPE_DEDUP_TYPE_BASE * 404, false, '필살불가', '저격불가')
         );
     }
 
diff --git a/hwe/sammo/ActionSpecialWar/che_반계.php b/hwe/sammo/ActionSpecialWar/che_반계.php
index 4d2117d5..2239a6df 100644
--- a/hwe/sammo/ActionSpecialWar/che_반계.php
+++ b/hwe/sammo/ActionSpecialWar/che_반계.php
@@ -29,9 +29,16 @@ class che_반계 extends \sammo\BaseSpecial{
         return $value;
     }
 
+    public function onCalcOpposeStat(General $general, string $statName, $value, $aux = null)
+    {
+        $debuff = [
+            'warMagicSuccessProb' => 0.1,
+        ][$statName] ?? 0;
+        return $value - $debuff;
+    }
+
     public function getBattlePhaseSkillTriggerList(WarUnit $unit):?WarUnitTriggerCaller{
         return new WarUnitTriggerCaller(
-            new WarActivateSkills($unit, BaseWarUnitTrigger::TYPE_ITEM + BaseWarUnitTrigger::TYPE_DEDUP_TYPE_BASE * 406, false, '계략약화'),
             new che_반계시도($unit),
             new che_반계발동($unit)
         );
diff --git a/hwe/sammo/WarUnitTrigger/che_계략시도.php b/hwe/sammo/WarUnitTrigger/che_계략시도.php
index f4c78f44..a348804d 100644
--- a/hwe/sammo/WarUnitTrigger/che_계략시도.php
+++ b/hwe/sammo/WarUnitTrigger/che_계략시도.php
@@ -55,9 +55,6 @@ class che_계략시도 extends BaseWarUnitTrigger{
         $magicSuccessProb = 0.7;
         $magicSuccessProb = $general->onCalcStat($general, 'warMagicSuccessProb', $magicSuccessProb);
         $magicSuccessProb = $oppose->getGeneral()->onCalcOpposeStat($general, 'warMagicSuccessProb', $magicSuccessProb);
-        if($self->hasActivatedSkill('계략약화')){
-            $magicSuccessProb -= 0.1; //NOTE: 앞으로 이건 oppose의 onCalcStat에 들어가야하지 않을까?
-        }
 
         if($oppose instanceof WarUnitCity){
             $magic = Util::choiceRandom(array_keys(static::$tableToCity));