diff --git a/libs/control.js b/libs/control.js
index 3ca09a2f..b7551997 100644
--- a/libs/control.js
+++ b/libs/control.js
@@ -444,6 +444,8 @@ control.prototype._initStatistics = function (totalTime) {
             'extraDamage': 0,
             'moveDirectly': 0,
             'ignoreSteps': 0,
+            'oneDefEffect': 0,
+            'oneMdefEffect': 0,
         }
 }
 
diff --git a/libs/enemys.js b/libs/enemys.js
index 11dd381f..9a4a6e04 100644
--- a/libs/enemys.js
+++ b/libs/enemys.js
@@ -407,6 +407,16 @@ enemys.prototype.getDefDamage = function (enemy, k, x, y, floorId) {
     return nowDamage - nextDamage;
 }
 
+////// N魔防减伤计算 //////
+enemys.prototype.getMdefDamage = function (enemy, k, x, y, floorId) {
+    if (typeof enemy == 'string') enemy = core.getEnemyValue(enemy, null, x, y, floorId);
+    k = k || 1;
+    const nowDamage = this._getDamage(enemy, null, x, y, floorId);
+    const nextDamage = this._getDamage(enemy, { "mdef": core.status.hero.mdef + k }, x, y, floorId);
+    if (nowDamage == null || nextDamage == null) return "???";
+    return nowDamage - nextDamage;
+}
+
 enemys.prototype.getEnemyInfo = function (enemy, hero, x, y, floorId) {
     if (enemy == null) return null;
     if (typeof enemy == 'string') enemy = core.getEnemyValue(enemy, null, x, y, floorId);
diff --git a/project/functions.js b/project/functions.js
index 95ec79d3..a487c5ae 100644
--- a/project/functions.js
+++ b/project/functions.js
@@ -271,6 +271,7 @@ var functions_d6ad677b_427a_4623_b50f_a445a3b0ef8a =
 		"afterBattle": function (enemyId, x, y) {
 			// 战斗结束后触发的事件
 
+			const floorId = core.status.floorId;
 			var enemy = core.getEnemyValue(enemyId, null, x, y);
 			var special = enemy.special;
 
@@ -308,6 +309,11 @@ var functions_d6ad677b_427a_4623_b50f_a445a3b0ef8a =
 				return;
 			}
 
+			const defDamage = core.enemys.getDefDamage(enemy, -1, x, y, floorId);
+			if (typeof defDamage === "number") core.status.hero.statistics.oneDefEffect -= defDamage;
+			const mdefDamage = core.enemys.getMdefDamage(enemy, -1, x, y, floorId);
+			if (typeof mdefDamage === "number") core.status.hero.statistics.oneMdefEffect -= mdefDamage;
+
 			// 扣减体力值并记录统计数据
 			core.status.hero.hp -= damage;
 			core.status.hero.statistics.battleDamage += damage;
diff --git a/project/plugins.js b/project/plugins.js
index 2ae37c81..a1f69c12 100644
--- a/project/plugins.js
+++ b/project/plugins.js
@@ -10129,7 +10129,9 @@ var plugins_bb40132b_638b_4a9f_b028_d3fe47acc8d1 =
 					+ "受到的总伤害为" + core.formatBigNumber(statistics.battleDamage + statistics.poisonDamage + statistics.extraDamage)
 					+ "，其中战斗伤害" + core.formatBigNumber(statistics.battleDamage) + "点"
 					+ (core.flags.statusBarItems.indexOf('enableDebuff') >= 0 ? ("，中毒伤害" + core.formatBigNumber(statistics.poisonDamage) + "点") : "")
-					+ "，领域/夹击/阻击/血网伤害" + core.formatBigNumber(statistics.extraDamage) + "点。";
+					+ "，领域/夹击/阻击/血网伤害" + core.formatBigNumber(statistics.extraDamage) + "点。\n\n"
+					+ "1防御累计减伤为" + core.formatBigNumber(statistics.oneDefEffect || 0)
+					+ "，1护盾累计减伤为" + core.formatBigNumber(statistics.oneMdefEffect || 0) + "。";
 				core.drawTextContent(ctx, str, {
 					left: 30, top: 30, color: "black", maxWidth: 360, fontSize: 14
 				});
diff --git a/runtime.d.ts b/runtime.d.ts
index eae58d98..cdee64c7 100644
--- a/runtime.d.ts
+++ b/runtime.d.ts
@@ -198,7 +198,9 @@ type HeroStatus = {
         moveDirectly: number
         poisonDamage: number
         start: number
-        totalTime: number
+        totalTime: number,
+        oneDefEffect: number,
+        oneMdefEffect: number,
     }
     [key: string]: any
 }
@@ -1642,6 +1644,18 @@ interface enemys {
      */
     getDefDamage(enemy: string | Enemy, k?: number, x?: number, y?: number, floorId?: string): number
 
+    /**
+     * 计算再加若干点护盾能使某只敌人对主角的总伤害降低多少
+     * @example core.nextCriticals('greenSlime', 10, 0, 0, 'MT0') // 再加10点防御能使绿头怪的伤害降低多少
+     * @param enemy 敌人id或敌人对象
+     * @param k 假设主角增加的护盾，可选，默认为1
+     * @param x 敌人的横坐标，可选
+     * @param y 敌人的纵坐标，可选
+     * @param floorId 敌人所在的地图，可选
+     * @returns 总伤害的减少量
+     */
+    getMdefDamage(enemy: string | Enemy, k?: number, x?: number, y?: number, floorId?: string): number
+
     /**
      * 获得某张地图的敌人集合，用于手册绘制
      * @example core.getCurrentEnemys('MT0') // 主塔0层的敌人集合
@@ -3358,7 +3372,10 @@ declare class PaginationClass extends MenuBaseClass {
 
 type CoreMixin = {
     firstData: { [x: string]: any }
-    /** 全塔属性开关 */flags: { [flagName: string]: boolean | number}
+    /** 全塔属性开关 */flags: { 
+        statusBarItems: string[]
+        [flagName: string]: boolean | number
+    }
     /** 全局数值 */values:
     {
         /** 全局帧动画时间 */animateSpeed: number;