diff --git a/scripts/hv-unified.user.js b/scripts/hv-unified.user.js
index 047e2e9..724258e 100644
--- a/scripts/hv-unified.user.js
+++ b/scripts/hv-unified.user.js
@@ -1,7 +1,7 @@
 // ==UserScript==
 // @name         HV Unified
 // @namespace    hvunified
-// @version      0.14.27
+// @version      0.14.28
 // @description  HV Unified — battle automation, guidance, and UI enhancements for HentaiVerse
 // @author       GaboGG + Hermes
 // @match        *://*.hentaiverse.org/*
@@ -17,7 +17,7 @@
 // CONFIG — default settings
 // ═══════════════════════════════════════════════════════════════════════
 
-const VERSION = '0.14.27';
+const VERSION = '0.14.28';
 
 const CFG = {
     // — Battle automation
@@ -1503,6 +1503,19 @@ function strategyVeteran() {
         }
     }
 
+    // 2c. OC-building priority: when 5+ monsters, OC < 60, and AoE skills ready,
+    //     skip debuffs/non-essential buffs and basic attack to build OC fast.
+    const needsOC = STATE.monsters && STATE.monsters.length >= 5
+        && STATE.oc < (CFG.skillOC || 60)
+        && STATE.skillsKnown.includes('Rending Blow')
+        && document.querySelector(`.btqs[onmouseover*="set_infopane_spell('Rending Blow'"], .btsd[onmouseover*="set_infopane_spell('Rending Blow'"]`)
+            ?.hasAttribute('onclick');
+    if (needsOC && STATE.hp > 0.40 && STATE.mp > 0.20) {
+        const t = hasHighThreat(THREAT_PX) ? findDangerousMonster() : findOptimalDominoTarget();
+        if (t >= 0 && STATE.monsters[t] && STATE.monsters[t].hasAttribute('onclick'))
+            return { type: 'attack', target: t, _reason: 'oc_build' };
+    }
+
     // 3. Buffs
     //    On first round, cast cheapest-first to proc channeling
     if (CFG.autoBuff) {
diff --git a/scripts/latest.user.js b/scripts/latest.user.js
index 047e2e9..724258e 100644
--- a/scripts/latest.user.js
+++ b/scripts/latest.user.js
@@ -1,7 +1,7 @@
 // ==UserScript==
 // @name         HV Unified
 // @namespace    hvunified
-// @version      0.14.27
+// @version      0.14.28
 // @description  HV Unified — battle automation, guidance, and UI enhancements for HentaiVerse
 // @author       GaboGG + Hermes
 // @match        *://*.hentaiverse.org/*
@@ -17,7 +17,7 @@
 // CONFIG — default settings
 // ═══════════════════════════════════════════════════════════════════════
 
-const VERSION = '0.14.27';
+const VERSION = '0.14.28';
 
 const CFG = {
     // — Battle automation
@@ -1503,6 +1503,19 @@ function strategyVeteran() {
         }
     }
 
+    // 2c. OC-building priority: when 5+ monsters, OC < 60, and AoE skills ready,
+    //     skip debuffs/non-essential buffs and basic attack to build OC fast.
+    const needsOC = STATE.monsters && STATE.monsters.length >= 5
+        && STATE.oc < (CFG.skillOC || 60)
+        && STATE.skillsKnown.includes('Rending Blow')
+        && document.querySelector(`.btqs[onmouseover*="set_infopane_spell('Rending Blow'"], .btsd[onmouseover*="set_infopane_spell('Rending Blow'"]`)
+            ?.hasAttribute('onclick');
+    if (needsOC && STATE.hp > 0.40 && STATE.mp > 0.20) {
+        const t = hasHighThreat(THREAT_PX) ? findDangerousMonster() : findOptimalDominoTarget();
+        if (t >= 0 && STATE.monsters[t] && STATE.monsters[t].hasAttribute('onclick'))
+            return { type: 'attack', target: t, _reason: 'oc_build' };
+    }
+
     // 3. Buffs
     //    On first round, cast cheapest-first to proc channeling
     if (CFG.autoBuff) {
diff --git a/src/config.js b/src/config.js
index 8cb020c..7809283 100644
--- a/src/config.js
+++ b/src/config.js
@@ -2,7 +2,7 @@
 // CONFIG — default settings
 // ═══════════════════════════════════════════════════════════════════════
 
-const VERSION = '0.14.27';
+const VERSION = '0.14.28';
 
 const CFG = {
     // — Battle automation
diff --git a/src/header.user.js b/src/header.user.js
index e12d408..f9e99a1 100644
--- a/src/header.user.js
+++ b/src/header.user.js
@@ -1,7 +1,7 @@
 // ==UserScript==
 // @name         HV Unified
 // @namespace    hvunified
-// @version      0.14.27
+// @version      0.14.28
 // @description  HV Unified — battle automation, guidance, and UI enhancements for HentaiVerse
 // @author       GaboGG + Hermes
 // @match        *://*.hentaiverse.org/*
diff --git a/src/strategy-engine.js b/src/strategy-engine.js
index ca81185..2e6e615 100644
--- a/src/strategy-engine.js
+++ b/src/strategy-engine.js
@@ -777,6 +777,19 @@ function strategyVeteran() {
         }
     }
 
+    // 2c. OC-building priority: when 5+ monsters, OC < 60, and AoE skills ready,
+    //     skip debuffs/non-essential buffs and basic attack to build OC fast.
+    const needsOC = STATE.monsters && STATE.monsters.length >= 5
+        && STATE.oc < (CFG.skillOC || 60)
+        && STATE.skillsKnown.includes('Rending Blow')
+        && document.querySelector(`.btqs[onmouseover*="set_infopane_spell('Rending Blow'"], .btsd[onmouseover*="set_infopane_spell('Rending Blow'"]`)
+            ?.hasAttribute('onclick');
+    if (needsOC && STATE.hp > 0.40 && STATE.mp > 0.20) {
+        const t = hasHighThreat(THREAT_PX) ? findDangerousMonster() : findOptimalDominoTarget();
+        if (t >= 0 && STATE.monsters[t] && STATE.monsters[t].hasAttribute('onclick'))
+            return { type: 'attack', target: t, _reason: 'oc_build' };
+    }
+
     // 3. Buffs
     //    On first round, cast cheapest-first to proc channeling
     if (CFG.autoBuff) {