diff --git a/src/GameLogic/DefaultDropGenerator.cs b/src/GameLogic/DefaultDropGenerator.cs
index bd42a50f7..b59c78b8a 100644
--- a/src/GameLogic/DefaultDropGenerator.cs
+++ b/src/GameLogic/DefaultDropGenerator.cs
@@ -150,6 +150,7 @@ public DefaultDropGenerator(GameConfiguration config, IRandomizer randomizer)
         }
 
         item.Level = GetItemLevelByMonsterLevel(item.Definition!, monsterLvl);
+        item.Durability = item.GetMaximumDurabilityOfOnePiece();
         return item;
     }
 
@@ -159,8 +160,9 @@ public DefaultDropGenerator(GameConfiguration config, IRandomizer randomizer)
     /// <param name="item">The item.</param>
     protected void ApplyRandomOptions(Item item)
     {
-        item.Durability = item.GetMaximumDurabilityOfOnePiece();
-        foreach (var option in item.Definition!.PossibleItemOptions.Where(o => o.AddsRandomly))
+        foreach (var option in item.Definition!.PossibleItemOptions.Where(o =>
+            o.AddsRandomly &&
+            !o.PossibleOptions.Any(po => object.Equals(po.OptionType, ItemOptionTypes.Excellent))))
         {
             this.ApplyOption(item, option);
         }
@@ -198,6 +200,7 @@ protected void ApplyRandomOptions(Item item)
         item.HasSkill = item.CanHaveSkill(); // every excellent item got skill
 
         this.AddRandomExcOptions(item);
+        item.Durability = item.GetMaximumDurabilityOfOnePiece();
         return item;
     }
 
@@ -216,6 +219,7 @@ protected void ApplyRandomOptions(Item item)
         item.HasSkill = item.CanHaveSkill(); // every ancient item got skill
 
         this.ApplyRandomAncientOption(item);
+        item.Durability = item.GetMaximumDurabilityOfOnePiece();
         return item;
     }
 
@@ -295,6 +299,7 @@ private static bool IsGroupRelevant(MonsterDefinition monsterDefinition, DropIte
             this.AddRandomExcOptions(item);
         }
 
+        item.Durability = item.GetMaximumDurabilityOfOnePiece();
         return item;
     }
 
@@ -314,7 +319,7 @@ private void ApplyOption(Item item, ItemOptionDefinition option)
                 var itemOptionLink = new ItemOptionLink
                 {
                     ItemOption = newOption,
-                    Level = newOption?.LevelDependentOptions.Select(l => l.Level).SelectRandom() ?? 0
+                    Level = newOption?.LevelDependentOptions.Select(l => l.Level).SelectRandom() ?? 0,
                 };
                 item.ItemOptions.Add(itemOptionLink);
             }
diff --git a/src/Persistence/Initialization/InitializerBase.cs b/src/Persistence/Initialization/InitializerBase.cs
index 3826a4c2a..2569d90c2 100644
--- a/src/Persistence/Initialization/InitializerBase.cs
+++ b/src/Persistence/Initialization/InitializerBase.cs
@@ -180,6 +180,7 @@ protected IncreasableItemOption CreateItemOption(int number, AttributeDefinition
         itemOption.Number = number;
 
         itemOption.PowerUpDefinition = this.CreatePowerUpDefinition(attributeDefinition, value, aggregateType);
+        float baseValue = aggregateType == AggregateType.Multiplicate ? 1.0f : 0.0f;
 
         for (int level = 1; level <= this.MaximumOptionLevel; level++)
         {
@@ -187,7 +188,7 @@ protected IncreasableItemOption CreateItemOption(int number, AttributeDefinition
             optionOfLevel.Level = level;
             optionOfLevel.PowerUpDefinition = this.CreatePowerUpDefinition(
                 itemOption.PowerUpDefinition.TargetAttribute!,
-                level * valueIncrementPerLevel,
+                baseValue + (level * valueIncrementPerLevel),
                 aggregateType);
             itemOption.LevelDependentOptions.Add(optionOfLevel);
         }
diff --git a/src/Persistence/Initialization/Updates/FixMaxManaAndAbilityJewelryOptionsUpdateSeason6.cs b/src/Persistence/Initialization/Updates/FixMaxManaAndAbilityJewelryOptionsUpdateSeason6.cs
new file mode 100644
index 000000000..24eda9dcc
--- /dev/null
+++ b/src/Persistence/Initialization/Updates/FixMaxManaAndAbilityJewelryOptionsUpdateSeason6.cs
@@ -0,0 +1,72 @@
+// <copyright file="FixMaxManaAndAbilityJewelryOptionsUpdateSeason6.cs" company="MUnique">
+// Licensed under the MIT License. See LICENSE file in the project root for full license information.
+// </copyright>
+
+namespace MUnique.OpenMU.Persistence.Initialization.Updates;
+
+using System.Runtime.InteropServices;
+using System.Threading.Tasks;
+using MUnique.OpenMU.AttributeSystem;
+using MUnique.OpenMU.DataModel.Configuration;
+using MUnique.OpenMU.PlugIns;
+
+/// <summary>
+/// This update fixes the calculation for max mana/AG % increase provided by Ring of Magic/Pendant of Ability options.
+/// </summary>
+[PlugIn(PlugInName, PlugInDescription)]
+[Guid("EAC7C809-D4B8-443F-BE52-E56560003483")]
+public class FixMaxManaAndAbilityJewelryOptionsUpdateSeason6 : UpdatePlugInBase
+{
+    /// <summary>
+    /// The plug in name.
+    /// </summary>
+    internal const string PlugInName = "Fix max mana/AG % increase jewelry options";
+
+    /// <summary>
+    /// The plug in description.
+    /// </summary>
+    internal const string PlugInDescription = "This update fixes the calculation for max mana/AG % increase provided by Ring of Magic/Pendant of Ability options";
+
+    /// <inheritdoc />
+    public override string Name => PlugInName;
+
+    /// <inheritdoc />
+    public override string Description => PlugInDescription;
+
+    /// <inheritdoc />
+    public override UpdateVersion Version => UpdateVersion.FixMaxManaAndAbilityJewelryOptionsSeason6;
+
+    /// <inheritdoc />
+    public override string DataInitializationKey => VersionSeasonSix.DataInitialization.Id;
+
+    /// <inheritdoc />
+    public override bool IsMandatory => true;
+
+    /// <inheritdoc />
+    public override DateTime CreatedAt => new(2024, 09, 26, 10, 00, 0, DateTimeKind.Utc);
+
+    /// <inheritdoc />
+    protected override async ValueTask ApplyAsync(IContext context, GameConfiguration gameConfiguration)
+    {
+        var itemOptionGuids = new List<Guid> { new("00000083-d018-8826-0000-000000000000"), new("00000083-d01c-bbba-0000-000000000000") };
+        var itemOptions = gameConfiguration.ItemOptions.Where(io => itemOptionGuids.Contains(io.GetId()));
+
+        foreach (var itemOption in itemOptions)
+        {
+            var optionsOfLevel = itemOption?.PossibleOptions.FirstOrDefault()?.LevelDependentOptions
+                .Where(opt => opt.Level > 1)
+                .OrderBy(opt => opt.Level);
+
+            if (optionsOfLevel is not null)
+            {
+                for (int i = 0; i < optionsOfLevel.Count(); i++)
+                {
+                    if (optionsOfLevel.ElementAt(i).PowerUpDefinition?.Boost?.ConstantValue is SimpleElement elmt && elmt.Value > i + 2)
+                    {
+                        elmt.Value -= i + 1;
+                    }
+                }
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/Persistence/Initialization/Updates/UpdateVersion.cs b/src/Persistence/Initialization/Updates/UpdateVersion.cs
index a273401f2..b66aae1d0 100644
--- a/src/Persistence/Initialization/Updates/UpdateVersion.cs
+++ b/src/Persistence/Initialization/Updates/UpdateVersion.cs
@@ -159,4 +159,9 @@ public enum UpdateVersion
     /// The version of the <see cref="AddItemDropGroupForJewelsUpdateSeason6"/>.
     /// </summary>
     AddItemDropGroupForJewelsSeason6 = 30,
+
+    /// <summary>
+    /// The version of the <see cref="FixMaxManaAndAbilityJewelryOptionsUpdateSeason6"/>.
+    /// </summary>
+    FixMaxManaAndAbilityJewelryOptionsSeason6 = 31,
 }
\ No newline at end of file
diff --git a/src/Persistence/Initialization/VersionSeasonSix/Items/Jewelery.cs b/src/Persistence/Initialization/VersionSeasonSix/Items/Jewelery.cs
index 1eaf95e14..181982c96 100644
--- a/src/Persistence/Initialization/VersionSeasonSix/Items/Jewelery.cs
+++ b/src/Persistence/Initialization/VersionSeasonSix/Items/Jewelery.cs
@@ -206,7 +206,7 @@ private ItemDefinition CreateJewelery(byte number, int slot, bool dropsFromMonst
         if (optionTargetAttribute != Stats.HealthRecoveryMultiplier && optionTargetAttribute is not null)
         {
             // Then it's either maximum mana or ability increase by 1% for each option level
-            var option = this.CreateOption("Jewelery option " + optionTargetAttribute.Designation, optionTargetAttribute, 1.01f, item.GetItemId(), AggregateType.Multiplicate);
+            var option = this.CreateOption("Jewelery option " + optionTargetAttribute.Designation, optionTargetAttribute, 0.01f, item.GetItemId(), AggregateType.Multiplicate);
 
             item.PossibleItemOptions.Add(option);
         }