diff --git a/Assets/_Game/Scripts/Player/PlayerSkillInput.cs b/Assets/_Game/Scripts/Player/PlayerSkillInput.cs
index 7ba89e1e..f78d0572 100644
--- a/Assets/_Game/Scripts/Player/PlayerSkillInput.cs
+++ b/Assets/_Game/Scripts/Player/PlayerSkillInput.cs
@@ -92,9 +92,25 @@ namespace Colosseum.Player
         [Tooltip("시야 차단 확인용 레이어 (벽, 바닥 등)")]
         [SerializeField] private LayerMask lineOfSightBlockLayers;
 
+        [Header("지면 타겟팅 설정 (Ground Target)")]
+        [Tooltip("지면 레이캐스트용 레이어 (바닥, 지형 등)")]
+        [SerializeField] private LayerMask groundTargetLayers;
+        [Tooltip("지면 타겟팅 최대 사거리")]
+        [Min(1f)] [SerializeField] private float groundTargetMaxRange = 20f;
+
         private InputSystem_Actions inputActions;
         private bool gameplayInputEnabled = true;
 
+        // Ground Target 타겟팅 모드
+        private enum TargetingMode
+        {
+            None,           // 일반 모드
+            GroundTarget    // 지면 타겟팅 모드 (커서로 위치 선택 중)
+        }
+
+        private TargetingMode currentTargetingMode = TargetingMode.None;
+        private int pendingGroundTargetSlotIndex = -1;
+
         public SkillData[] SkillSlots => skillSlots;
         public SkillLoadoutEntry[] SkillLoadoutEntries => skillLoadoutEntries;
 
@@ -160,6 +176,10 @@ namespace Colosseum.Player
             EnsureSkillLoadoutCapacity();
             SyncLegacySkillsToLoadoutEntries();
             AutoRegisterPlayerSkills();
+
+            // Ground 레이어가 설정되지 않은 경우 기본값 적용 (Layer 7 = Ground)
+            if (groundTargetLayers.value == 0)
+                groundTargetLayers = 1 << 7;
         }
 
         private void OnEnable()
@@ -186,6 +206,7 @@ namespace Colosseum.Player
                 return;
             }
 
+            CancelGroundTargetMode();
             inputActions.Player.Disable();
         }
 
@@ -330,7 +351,8 @@ namespace Colosseum.Player
         #endif
 
         /// <summary>
-        /// 기존 SkillData 직렬화와 새 로드아웃 엔트리 구조를 동기화합니다.
+        /// skillSlots를 출처(SSOT)로 삼아 로드아웃 엔트리의 BaseSkill을 동기화합니다.
+        /// 슬롯 변경은 항상 skillSlots를 거쳐야 하며, 엔트리는 이를 따릅니다.
         /// </summary>
         private void SyncLegacySkillsToLoadoutEntries()
         {
@@ -339,20 +361,12 @@ namespace Colosseum.Player
 
             for (int i = 0; i < skillSlots.Length; i++)
             {
+                SkillData slotSkill = skillSlots[i];
                 SkillLoadoutEntry entry = skillLoadoutEntries[i];
-                SkillData legacySkill = skillSlots[i];
 
-                if (entry.BaseSkill == null && legacySkill != null)
+                if (entry.BaseSkill != slotSkill)
                 {
-                    entry.SetBaseSkill(legacySkill);
-                }
-                else if (legacySkill == null && entry.BaseSkill != null)
-                {
-                    skillSlots[i] = entry.BaseSkill;
-                }
-                else if (entry.BaseSkill != legacySkill)
-                {
-                    skillSlots[i] = entry.BaseSkill;
+                    entry.SetBaseSkill(slotSkill);
                 }
             }
         }
@@ -430,6 +444,13 @@ namespace Colosseum.Player
                 }
             }
 
+            // Ground Target 스킬인 경우 타겟팅 모드 진입
+            if (RequiresGroundTarget(loadoutEntry))
+            {
+                EnterGroundTargetMode(slotIndex);
+                return;
+            }
+
             RequestSkillExecutionRpc(slotIndex, targetNetworkObjectId);
         }
 
@@ -437,7 +458,7 @@ namespace Colosseum.Player
         /// 서버에 스킬 실행 요청
         /// </summary>
         [Rpc(SendTo.Server)]
-        private void RequestSkillExecutionRpc(int slotIndex, ulong targetNetworkObjectId = 0)
+        private void RequestSkillExecutionRpc(int slotIndex, ulong targetNetworkObjectId = 0, Vector3 groundTargetPosition = default)
         {
             if (slotIndex < 0 || slotIndex >= skillSlots.Length)
                 return;
@@ -469,6 +490,17 @@ namespace Colosseum.Player
                 targetNetworkObjectId = 0;
             }
 
+            // 지면 타겟 사거리 검증
+            if (groundTargetPosition != default)
+            {
+                float distance = Vector3.Distance(transform.position, groundTargetPosition);
+                if (distance > groundTargetMaxRange)
+                {
+                    Debug.Log($"[GroundTarget] 사거리 초과: {distance:F1}m (max={groundTargetMaxRange}m)");
+                    return;
+                }
+            }
+
             // 마나 소모 (무기 배율 적용)
             if (networkController != null && actualManaCost > 0)
             {
@@ -476,14 +508,14 @@ namespace Colosseum.Player
             }
 
             // 모든 클라이언트에 스킬 실행 전파
-            BroadcastSkillExecutionRpc(slotIndex, targetNetworkObjectId);
+            BroadcastSkillExecutionRpc(slotIndex, targetNetworkObjectId, groundTargetPosition);
         }
 
         /// <summary>
         /// 모든 클라이언트에 스킬 실행 전파
         /// </summary>
         [Rpc(SendTo.ClientsAndHost)]
-        private void BroadcastSkillExecutionRpc(int slotIndex, ulong targetNetworkObjectId = 0)
+        private void BroadcastSkillExecutionRpc(int slotIndex, ulong targetNetworkObjectId = 0, Vector3 groundTargetPosition = default)
         {
             if (slotIndex < 0 || slotIndex >= skillSlots.Length)
                 return;
@@ -496,7 +528,14 @@ namespace Colosseum.Player
             GameObject targetOverride = ResolveTargetFromNetworkId(targetNetworkObjectId);
 
             // 모든 클라이언트에서 스킬 실행 (애니메이션 포함)
-            skillController.ExecuteSkill(loadoutEntry, targetOverride);
+            if (groundTargetPosition != default)
+            {
+                skillController.ExecuteSkill(loadoutEntry, targetOverride, groundTargetPosition);
+            }
+            else
+            {
+                skillController.ExecuteSkill(loadoutEntry, targetOverride);
+            }
         }
 
         /// <summary>
@@ -518,13 +557,9 @@ namespace Colosseum.Player
         /// </summary>
         public SkillData GetSkill(int slotIndex)
         {
-            EnsureSkillSlotCapacity();
-            EnsureSkillLoadoutCapacity();
-            SyncLegacySkillsToLoadoutEntries();
-
             if (slotIndex < 0 || slotIndex >= skillSlots.Length)
                 return null;
-            return skillLoadoutEntries[slotIndex] != null ? skillLoadoutEntries[slotIndex].BaseSkill : skillSlots[slotIndex];
+            return skillSlots[slotIndex];
         }
 
         /// <summary>
@@ -532,10 +567,6 @@ namespace Colosseum.Player
         /// </summary>
         public SkillLoadoutEntry GetSkillLoadout(int slotIndex)
         {
-            EnsureSkillSlotCapacity();
-            EnsureSkillLoadoutCapacity();
-            SyncLegacySkillsToLoadoutEntries();
-
             if (slotIndex < 0 || slotIndex >= skillLoadoutEntries.Length)
                 return null;
 
@@ -585,19 +616,32 @@ namespace Colosseum.Player
 
         /// <summary>
         /// 슬롯 엔트리를 직접 설정합니다.
+        /// skillSlots를 우선 갱신한 뒤 엔트리에 젬 정보를 복사합니다.
         /// </summary>
         public void SetSkillLoadout(int slotIndex, SkillLoadoutEntry loadoutEntry)
         {
             EnsureSkillSlotCapacity();
             EnsureSkillLoadoutCapacity();
 
-            if (slotIndex < 0 || slotIndex >= skillLoadoutEntries.Length)
+            if (slotIndex < 0 || slotIndex >= skillSlots.Length)
                 return;
 
-            skillLoadoutEntries[slotIndex] = loadoutEntry != null ? loadoutEntry.CreateCopy() : new SkillLoadoutEntry();
-            skillLoadoutEntries[slotIndex].EnsureGemSlotCapacity();
-            skillLoadoutEntries[slotIndex].SanitizeInvalidGems(true);
-            skillSlots[slotIndex] = skillLoadoutEntries[slotIndex].BaseSkill;
+            // skillSlots를 SSOT로 먼저 갱신
+            SkillData skillFromEntry = loadoutEntry != null ? loadoutEntry.BaseSkill : null;
+            skillSlots[slotIndex] = skillFromEntry;
+
+            // 엔트리는 슬롯의 스킬 + 전달받은 젬을 보관
+            SkillLoadoutEntry targetEntry = skillLoadoutEntries[slotIndex];
+            targetEntry.SetBaseSkill(skillFromEntry);
+
+            if (loadoutEntry != null)
+            {
+                for (int g = 0; g < loadoutEntry.SocketedGems.Count; g++)
+                {
+                    targetEntry.SetGem(g, loadoutEntry.SocketedGems[g]);
+                }
+            }
+
             OnSkillSlotsChanged?.Invoke();
         }
 
@@ -613,12 +657,12 @@ namespace Colosseum.Player
                 return;
 
             skillLoadoutEntries[slotIndex].SetGem(gemSlotIndex, gem);
-            skillSlots[slotIndex] = skillLoadoutEntries[slotIndex].BaseSkill;
             OnSkillSlotsChanged?.Invoke();
         }
 
         /// <summary>
         /// 슬롯 엔트리 전체를 한 번에 갱신합니다.
+        /// skillSlots를 SSOT로 먼저 갱신한 뒤 엔트리에 젬 정보를 복사합니다.
         /// </summary>
         public void SetSkillLoadouts(IReadOnlyList<SkillLoadoutEntry> loadouts)
         {
@@ -628,20 +672,28 @@ namespace Colosseum.Player
             if (loadouts == null)
                 return;
 
-            int count = Mathf.Min(skillLoadoutEntries.Length, loadouts.Count);
+            int count = Mathf.Min(skillSlots.Length, loadouts.Count);
             for (int i = 0; i < count; i++)
             {
-                skillLoadoutEntries[i] = loadouts[i] != null ? loadouts[i].CreateCopy() : new SkillLoadoutEntry();
-                skillLoadoutEntries[i].EnsureGemSlotCapacity();
-                skillLoadoutEntries[i].SanitizeInvalidGems(true);
-                skillSlots[i] = skillLoadoutEntries[i].BaseSkill;
+                SkillData skillFromEntry = loadouts[i] != null ? loadouts[i].BaseSkill : null;
+                skillSlots[i] = skillFromEntry;
+
+                SkillLoadoutEntry targetEntry = skillLoadoutEntries[i];
+                targetEntry.SetBaseSkill(skillFromEntry);
+
+                if (loadouts[i] != null)
+                {
+                    for (int g = 0; g < loadouts[i].SocketedGems.Count; g++)
+                    {
+                        targetEntry.SetGem(g, loadouts[i].SocketedGems[g]);
+                    }
+                }
             }
 
-            for (int i = count; i < skillLoadoutEntries.Length; i++)
+            for (int i = count; i < skillSlots.Length; i++)
             {
-                skillLoadoutEntries[i] = new SkillLoadoutEntry();
-                skillLoadoutEntries[i].EnsureGemSlotCapacity();
                 skillSlots[i] = null;
+                skillLoadoutEntries[i].SetBaseSkill(null);
             }
 
             OnSkillSlotsChanged?.Invoke();
@@ -819,6 +871,143 @@ namespace Colosseum.Player
             }
         }
 
+        #region 지면 타게팅 (Ground Target)
+
+        /// <summary>
+        /// 해당 로드아웃 엔트리에 GroundPoint AreaCenter를 사용하는 Area 효과가 있는지 확인합니다.
+        /// </summary>
+        private bool RequiresGroundTarget(SkillLoadoutEntry loadoutEntry)
+        {
+            if (loadoutEntry == null) return false;
+
+            var castStartEffects = new List<SkillEffect>();
+            loadoutEntry.CollectCastStartEffects(castStartEffects);
+            for (int i = 0; i < castStartEffects.Count; i++)
+            {
+                if (castStartEffects[i] != null
+                    && castStartEffects[i].TargetType == TargetType.Area
+                    && castStartEffects[i].AreaCenter == AreaCenterType.GroundPoint)
+                    return true;
+            }
+
+            SkillData skill = loadoutEntry.BaseSkill;
+            if (skill != null)
+            {
+                foreach (var effect in skill.Effects)
+                {
+                    if (effect != null
+                        && effect.TargetType == TargetType.Area
+                        && effect.AreaCenter == AreaCenterType.GroundPoint)
+                        return true;
+                }
+            }
+
+            return false;
+        }
+
+        /// <summary>
+        /// 지면 타겟팅 모드로 진입합니다.
+        /// </summary>
+        private void EnterGroundTargetMode(int slotIndex)
+        {
+            currentTargetingMode = TargetingMode.GroundTarget;
+            pendingGroundTargetSlotIndex = slotIndex;
+            Debug.Log($"[GroundTarget] 타겟팅 모드 진입: 슬롯 {slotIndex}");
+        }
+
+        /// <summary>
+        /// 지면 타겟팅 모드를 취소하고 일반 모드로 복귀합니다.
+        /// </summary>
+        private void CancelGroundTargetMode()
+        {
+            if (currentTargetingMode != TargetingMode.GroundTarget)
+                return;
+
+            currentTargetingMode = TargetingMode.None;
+            pendingGroundTargetSlotIndex = -1;
+            Debug.Log("[GroundTarget] 타겟팅 모드 취소");
+        }
+
+        /// <summary>
+        /// 카메라 화면 중앙에서 지면 방향으로 레이캐스트하여 지면 위치를 구합니다.
+        /// </summary>
+        private bool RaycastForGroundPosition(out Vector3 groundPosition)
+        {
+            groundPosition = default;
+
+            Camera mainCamera = Camera.main;
+            if (mainCamera == null)
+            {
+                Debug.LogWarning("[GroundTarget] Camera.main을 찾을 수 없습니다.");
+                return false;
+            }
+
+            if (groundTargetLayers.value == 0)
+            {
+                Debug.LogWarning("[GroundTarget] groundTargetLayers가 설정되지 않았습니다.");
+                return false;
+            }
+
+            Ray ray = mainCamera.ScreenPointToRay(new Vector3(Screen.width * 0.5f, Screen.height * 0.5f, 0f));
+
+            if (!Physics.Raycast(ray, out RaycastHit hit, groundTargetMaxRange, groundTargetLayers))
+                return false;
+
+            groundPosition = hit.point;
+            return true;
+        }
+
+        /// <summary>
+        /// 지면 타겟팅 위치를 확정하고 스킬을 시전합니다.
+        /// </summary>
+        private void ConfirmGroundTarget()
+        {
+            if (!RaycastForGroundPosition(out Vector3 groundPosition))
+            {
+                Debug.Log("[GroundTarget] 지면 위치를 탐지하지 못했습니다. 취소합니다.");
+                CancelGroundTargetMode();
+                return;
+            }
+
+            int slotIndex = pendingGroundTargetSlotIndex;
+
+            // 타겟팅 모드 종료
+            currentTargetingMode = TargetingMode.None;
+            pendingGroundTargetSlotIndex = -1;
+
+            // 캐릭터를 타겟 방향으로 회전
+            Vector3 flatTargetPos = new Vector3(groundPosition.x, transform.position.y, groundPosition.z);
+            if ((flatTargetPos - transform.position).sqrMagnitude > 0.01f)
+            {
+                transform.rotation = Quaternion.LookRotation(flatTargetPos - transform.position);
+            }
+
+            // 서버에 스킬 실행 요청
+            RequestSkillExecutionRpc(slotIndex, 0, groundPosition);
+        }
+
+        private void Update()
+        {
+            if (currentTargetingMode != TargetingMode.GroundTarget)
+                return;
+
+            // 좌클릭: 지면 타겟 확정
+            if (Mouse.current != null && Mouse.current.leftButton.wasPressedThisFrame)
+            {
+                ConfirmGroundTarget();
+                return;
+            }
+
+            // 우클릭 또는 ESC: 타겟팅 취소
+            if ((Mouse.current != null && Mouse.current.rightButton.wasPressedThisFrame)
+                || (Keyboard.current != null && Keyboard.current.escapeKey.wasPressedThisFrame))
+            {
+                CancelGroundTargetMode();
+            }
+        }
+
+        #endregion
+
         #region 아군 타게팅
 
         /// <summary>