diff --git a/Assets/Scripts/Skills/Data/ActiveSkillData.cs b/Assets/Scripts/Skills/Data/ActiveSkillData.cs
index 5cdabc1..8d32e7c 100644
--- a/Assets/Scripts/Skills/Data/ActiveSkillData.cs
+++ b/Assets/Scripts/Skills/Data/ActiveSkillData.cs
@@ -81,9 +81,19 @@ namespace EerieVillage.Skills
         public float FireProbability = 1.0f;
 
         /// <summary>BT12-Dev 2026-05-10 PD — 사정거리 5단계 (Camera width 배수)</summary>
-        [Tooltip("사정거리 5단계 — Camera 가로 배수 (Short 0.2·MediumShort 0.5·Medium 0.667·MediumLong 1.0·Long 1.5)")]
+        [Tooltip("[잠정 유지] 사정거리 5단계 — 후속 정리. 실제 사정거리는 아래 MaxRange 사용")]
         public RangeTier Range = RangeTier.Medium;
 
+        // PD 지시 2026-05-13 — 투사체형 스킬 Inspector 조절 (사정거리·속도)
+        [Header("투사체 사거리·속도 (Inspector 조절)")]
+        [Tooltip("투사체 사정거리 (unit). 0 이하 시 fallback 10")]
+        [Min(0f)]
+        public float MaxRange = 10f;
+
+        [Tooltip("투사체 비행 속도 (unit/sec). 0 이하 시 fallback 6")]
+        [Min(0f)]
+        public float ProjectileSpeed = 6f;
+
         // BT12-Dev 2026-05-13 — 스킬 이펙트 prefab 3 + DoT damage multiplier (PD 지시: A02 파이어볼 이펙트 구현)
         [Header("스킬 이펙트 (Phase 2-E)")]
         [Tooltip("투사체 prefab — 부재 시 Resources/Skills/Projectiles/Default fallback")]
@@ -92,6 +102,10 @@ namespace EerieVillage.Skills
         [Tooltip("적중 시 Instantiate 되는 ParticleSystem prefab (적 위치)")]
         public GameObject OnHitFxPrefab;
 
+        // PD 지시 2026-05-13 — A04 번개 충격 피격 이펙트에 FX_Thunder Smoke 추가 (비주얼만)
+        [Tooltip("추가 피격 FX — 비주얼 전용 (예: A04 번개 충격 FX_Thunder Smoke 동반 spawn)")]
+        public GameObject ExtraHitFxPrefab;
+
         [Tooltip("DoT 적용 시 적 자식으로 Instantiate 되는 ParticleSystem prefab")]
         public GameObject OnDotFxPrefab;
 
diff --git a/Assets/Scripts/Skills/Effectors/HitboxDebug.cs b/Assets/Scripts/Skills/Effectors/HitboxDebug.cs
index ccb8c7f..f57307f 100644
--- a/Assets/Scripts/Skills/Effectors/HitboxDebug.cs
+++ b/Assets/Scripts/Skills/Effectors/HitboxDebug.cs
@@ -21,6 +21,28 @@ namespace EerieVillage.Skills.Effectors
             return go;
         }
 
+        /// <summary>
+        /// PD 지시 2026-05-13 — 투사체 사거리 시각화. spawnPos 부터 dir 방향 range 길이 파란 박스.
+        /// 색상 (0, 0.45, 1, 0.35) 반투명·발사 후 lifetime 후 자동 destroy.
+        /// </summary>
+        public static GameObject SpawnRange(Vector2 spawnPos, Vector2 dir, float range, float lifetime, float thickness = 0.3f)
+        {
+            var go = new GameObject("Range_Debug");
+            go.hideFlags = HideFlags.DontSave;
+            Vector2 dirN = dir.normalized;
+            Vector2 center = spawnPos + dirN * (range * 0.5f);
+            go.transform.position = (Vector3)center;
+            float angle = Mathf.Atan2(dirN.y, dirN.x) * Mathf.Rad2Deg;
+            go.transform.rotation = Quaternion.Euler(0f, 0f, angle);
+            go.transform.localScale = new Vector3(range, thickness, 1f);
+            var sr = go.AddComponent<SpriteRenderer>();
+            sr.sprite = GetWhiteSprite();
+            sr.color = new Color(0f, 0.45f, 1f, 0.35f);
+            sr.sortingOrder = 99;
+            if (lifetime > 0f) Object.Destroy(go, lifetime);
+            return go;
+        }
+
         /// <summary>지정 Transform 의 자식으로 박스 attach (target 이동 시 함께 이동·scale 은 size 그대로 유지).</summary>
         public static GameObject AttachToTransform(Transform target, Vector2 size)
         {
diff --git a/Assets/Scripts/Skills/Effectors/LightningStrikeSpawner.cs b/Assets/Scripts/Skills/Effectors/LightningStrikeSpawner.cs
index e91aa9d..e909fe2 100644
--- a/Assets/Scripts/Skills/Effectors/LightningStrikeSpawner.cs
+++ b/Assets/Scripts/Skills/Effectors/LightningStrikeSpawner.cs
@@ -71,6 +71,13 @@ namespace EerieVillage.Skills.Effectors
             // 박스 즉시 spawn (rotation=0 — FxRotation 미적용)
             HitboxDebug.Spawn(hitboxPos, capturedSize, Mathf.Max(data.BaseCooldown, 1f));
 
+            // PD 지시 2026-05-13 — ExtraHitFxPrefab 0.6초 후 spawn·y -0.5 오프셋 (판정 시점 무관·비주얼 전용)
+            if (data.ExtraHitFxPrefab != null)
+            {
+                Vector2 extraFxPos = fxPos + new Vector2(0f, -0.5f);
+                inventory.StartCoroutine(DelayedExtraHitFx(data, extraFxPos, 0.6f));
+            }
+
             // PD 지시 2026-05-13 — ScriptableObject DamageFrameDelay·반복 피해 정합
             inventory.StartCoroutine(FixedHitDamageCoroutine(hitboxPos, capturedSize, 0f, capturedDamage, data));
         }
@@ -92,6 +99,17 @@ namespace EerieVillage.Skills.Effectors
             }
         }
 
+        // PD 지시 2026-05-13 — ExtraHitFxPrefab 지연 spawn (비주얼 전용·판정 무관)
+        static System.Collections.IEnumerator DelayedExtraHitFx(ActiveSkillData data, Vector2 fxPos, float delaySeconds)
+        {
+            yield return new WaitForSeconds(delaySeconds);
+            if (data == null || data.ExtraHitFxPrefab == null) yield break;
+            var extraFx = Object.Instantiate(data.ExtraHitFxPrefab, fxPos, Quaternion.Euler(0f, 0f, data.FxRotation));
+            extraFx.hideFlags = HideFlags.DontSave;
+            extraFx.transform.localScale *= data.HitFxScale;
+            AutoDestroyFx(extraFx, GetFxLifetime(extraFx));
+        }
+
         static void DoOverlapBoxDamage(Vector2 pos, Vector2 size, float rotZ, int damage)
         {
             var cf = new ContactFilter2D();
diff --git a/Assets/Scripts/Skills/Effectors/PiercingProjectile.cs b/Assets/Scripts/Skills/Effectors/PiercingProjectile.cs
index 284a7ee..fdc8f70 100644
--- a/Assets/Scripts/Skills/Effectors/PiercingProjectile.cs
+++ b/Assets/Scripts/Skills/Effectors/PiercingProjectile.cs
@@ -22,7 +22,7 @@ namespace EerieVillage.Skills.Effectors
         public override void Initialize(ActiveSkillRuntime runtime, PlayerSkillInventory inventory, Vector2 direction)
         {
             base.Initialize(runtime, inventory, direction);
-            _speed = 2.5f;  // PD 지시 2026-05-13 — A13 천둥발 천천히 전진 (기본 6 → 2.5)
+            // PD 지시 2026-05-13 — 속도 Inspector 조절 영역 전환·_speed override 폐기 (data.ProjectileSpeed 정합)
             _lifetime = 6f;  // 관통이므로 lifetime 길게
             _lastHitTime.Clear();
 
diff --git a/Assets/Scripts/Skills/Effectors/Projectile.cs b/Assets/Scripts/Skills/Effectors/Projectile.cs
index 7b5d663..11b4260 100644
--- a/Assets/Scripts/Skills/Effectors/Projectile.cs
+++ b/Assets/Scripts/Skills/Effectors/Projectile.cs
@@ -55,19 +55,9 @@ namespace EerieVillage.Skills.Effectors
             _spawnPosition = transform.position;
             _spawnTime = Time.time;
 
-            // BT12-Dev 2026-05-10 PD — 사정거리 5단계 (Camera 가로 배수)
-            float camWidth = 12.44f;  // fallback (ortho size 3.5·16:9)
-            var cam = Camera.main;
-            if (cam != null && cam.orthographic)
-            {
-                float aspect = (cam.aspect > 0.01f) ? cam.aspect : (16f / 9f);
-                camWidth = cam.orthographicSize * 2f * aspect;
-            }
-            // BT12-Dev 2026-05-10 Camera ortho 3.5→5.0 정합 정정 (camWidth 12.44→17.78·1.43배).
-            // 기존 maxRange 동등 유지 위해 mults 1/1.43 비례 축소.
-            float[] mults = { 0.14f, 0.35f, 0.467f, 0.7f, 1.05f };
-            int idx = Mathf.Clamp((int)_data.Range, 0, mults.Length - 1);
-            _maxRange = camWidth * mults[idx];
+            // PD 지시 2026-05-13 — 투사체 사정거리·속도 Inspector 직접 조절 (RangeTier·camWidth·mults 계산 폐기)
+            _maxRange = (_data.MaxRange > 0.01f) ? _data.MaxRange : 10f;
+            _speed = (_data.ProjectileSpeed > 0.01f) ? _data.ProjectileSpeed : 6f;
 
             // PD 정합 2026-05-13 — Inspector ProjFxScale 매 frame 영역 영역 _originalScale 저장
             _originalScale = transform.localScale;
@@ -77,6 +67,9 @@ namespace EerieVillage.Skills.Effectors
             // PD 지시 2026-05-13 — 판정 영역 시각화 (자체 Collider2D bounds 영역 자식 박스·이동·페이드 정합)
             SpawnHitboxDebugChild();
 
+            // PD 지시 2026-05-13 — 투사체 사거리 파란 박스 시각화 (발사 후 3초 유지)
+            HitboxDebug.SpawnRange(_spawnPosition, _direction, _maxRange, 3f);
+
             // Renderer·MaterialPropertyBlock 캐싱 + 기본 alpha 저장
             _renderers = GetComponentsInChildren<Renderer>();
             _mpb = new MaterialPropertyBlock();