diff --git a/PKHeX.Core/Legality/Verifiers/TransferVerifier.cs b/PKHeX.Core/Legality/Verifiers/TransferVerifier.cs
index 26f85ecef..c19fde8df 100644
--- a/PKHeX.Core/Legality/Verifiers/TransferVerifier.cs
+++ b/PKHeX.Core/Legality/Verifiers/TransferVerifier.cs
@@ -5,7 +5,7 @@
 namespace PKHeX.Core
 {
     /// <summary>
-    /// Verifies the transfer data for a <see cref="PKM"/> that has been irreversably transferred forward.
+    /// Verifies the transfer data for a <see cref="PKM"/> that has been irreversibly transferred forward.
     /// </summary>
     public sealed class TransferVerifier : Verifier
     {
diff --git a/PKHeX.Core/PKM/Util/Conversion/EntityConverterResult.cs b/PKHeX.Core/PKM/Util/Conversion/EntityConverterResult.cs
index cf4824594..f7b601388 100644
--- a/PKHeX.Core/PKM/Util/Conversion/EntityConverterResult.cs
+++ b/PKHeX.Core/PKM/Util/Conversion/EntityConverterResult.cs
@@ -1,5 +1,8 @@
 namespace PKHeX.Core;
 
+/// <summary>
+/// Indicates the result of an entity conversion attempt.
+/// </summary>
 public enum EntityConverterResult
 {
     None,
diff --git a/PKHeX.Core/PKM/Util/Conversion/EntityRejuvenationSetting.cs b/PKHeX.Core/PKM/Util/Conversion/EntityRejuvenationSetting.cs
index 5c205babe..37746b7a2 100644
--- a/PKHeX.Core/PKM/Util/Conversion/EntityRejuvenationSetting.cs
+++ b/PKHeX.Core/PKM/Util/Conversion/EntityRejuvenationSetting.cs
@@ -1,5 +1,8 @@
 namespace PKHeX.Core;
 
+/// <summary>
+/// Setting to fill in data (rejuvenate) when converting an entity.
+/// </summary>
 public enum EntityRejuvenationSetting
 {
     Custom = -1,
diff --git a/PKHeX.Core/PKM/Util/Conversion/IEntityRejuvenator.cs b/PKHeX.Core/PKM/Util/Conversion/IEntityRejuvenator.cs
index 62a89da95..b82330c56 100644
--- a/PKHeX.Core/PKM/Util/Conversion/IEntityRejuvenator.cs
+++ b/PKHeX.Core/PKM/Util/Conversion/IEntityRejuvenator.cs
@@ -1,14 +1,27 @@
 namespace PKHeX.Core;
 
+/// <summary>
+/// Interface that exposes a method to <see cref="Rejuvenate"/> data after converting.
+/// </summary>
 public interface IEntityRejuvenator
 {
-    public void Rejuvenate(PKM result, PKM original);
+    /// <summary>
+    /// After converting, the method will attempt to auto-fill missing properties.
+    /// </summary>
+    /// <param name="result">Output data after conversion</param>
+    /// <param name="original">Input data prior to conversion</param>
+    void Rejuvenate(PKM result, PKM original);
 }
 
+/// <summary>
+/// Uses <see cref="LegalityAnalysis"/> to auto-fill missing data after conversion.
+/// </summary>
 public class LegalityRejuvenator : IEntityRejuvenator
 {
     public void Rejuvenate(PKM result, PKM original)
     {
+        // HOME transfers from PB8/PA8 => PK8 will sanitize Ball & Met/Egg Location.
+        // Transferring back without a reference PB8/PA8, we need to guess the *original* values.
         if (original is not PK8 pk8)
             return;
 
@@ -87,8 +100,3 @@ private static void RejuvenateBDSP(PKM result, PK8 original)
         }
     }
 }
-
-public sealed class EntityRejuvenatorDummy : IEntityRejuvenator
-{
-    public void Rejuvenate(PKM result, PKM original) { }
-}
diff --git a/PKHeX.Core/PKM/Util/EntityFileNamer.cs b/PKHeX.Core/PKM/Util/EntityFileNamer.cs
index 4e2e8a223..7c4536513 100644
--- a/PKHeX.Core/PKM/Util/EntityFileNamer.cs
+++ b/PKHeX.Core/PKM/Util/EntityFileNamer.cs
@@ -15,6 +15,9 @@ public static class EntityFileNamer
         public static string GetName(PKM pk) => Namer.GetName(pk);
     }
 
+    /// <summary>
+    /// PKHeX's default <see cref="PKM"/> file naming logic.
+    /// </summary>
     public sealed class DefaultEntityNamer : IFileNamer<PKM>
     {
         public string GetName(PKM obj)
@@ -47,6 +50,10 @@ private static string GetGBPKM(GBPKM gb)
         }
     }
 
+    /// <summary>
+    /// Exposes a method to get a file name (no extension) for the type.
+    /// </summary>
+    /// <typeparam name="T">Type that the implementer can create a file name for.</typeparam>
     public interface IFileNamer<in T>
     {
         string GetName(T obj);
diff --git a/PKHeX.Core/PKM/Util/Experience.cs b/PKHeX.Core/PKM/Util/Experience.cs
index 32219ba42..0e4f8e9ca 100644
--- a/PKHeX.Core/PKM/Util/Experience.cs
+++ b/PKHeX.Core/PKM/Util/Experience.cs
@@ -48,7 +48,7 @@ public static uint GetEXP(int level, int growth)
         /// </summary>
         /// <param name="level">Current Level</param>
         /// <param name="growth">Growth Rate type</param>
-        /// <returns>Percentage [0,1.00)</returns>
+        /// <returns>EXP to level up</returns>
         public static uint GetEXPToLevelUp(int level, int growth)
         {
             if (level >= 100)