diff --git a/PKHeX.Core/PKM/Strings/StringConverter3.cs b/PKHeX.Core/PKM/Strings/StringConverter3.cs
index 264ce78c2..f2717610b 100644
--- a/PKHeX.Core/PKM/Strings/StringConverter3.cs
+++ b/PKHeX.Core/PKM/Strings/StringConverter3.cs
@@ -127,7 +127,7 @@ public static byte SetG3Char(char chr, bool jp)
         '⑬',  '“',  '”',  '‘', '’',  '♂',  '♀',  '$',  ',',  '⑧',  '/',  'A', 'B',  'C',  'D',  'E', // B
         'F',  'G',  'H',  'I', 'J',  'K',  'L',  'M',  'N',  'O',  'P',  'Q', 'R',  'S',  'T',  'U', // C
         'V',  'W',  'X',  'Y', 'Z',  'a',  'b',  'c',  'd',  'e',  'f',  'g', 'h',  'i',  'j',  'k', // D
-        'l',  'm',  'n',  'o', 'p',  'q',  'r',  's',  't',  'u',  'v',  'w', 'x',  'y',  'z',  '0', // E
+        'l',  'm',  'n',  'o', 'p',  'q',  'r',  's',  't',  'u',  'v',  'w', 'x',  'y',  'z',  '▶', // E
         ':',  'Ä',  'Ö',  'Ü', 'ä',  'ö',  'ü',                                                      // F
 
         // Make the total length 256 so that any byte access is always within the array
@@ -150,7 +150,7 @@ public static byte SetG3Char(char chr, bool jp)
         '⋯',  '『', '』', '「', '」', '♂',  '♀',  '$',  '.', '⑧',  '/',  'Ａ', 'Ｂ', 'Ｃ', 'Ｄ', 'Ｅ', // B
         'Ｆ', 'Ｇ', 'Ｈ', 'Ｉ', 'Ｊ', 'Ｋ', 'Ｌ', 'Ｍ', 'Ｎ', 'Ｏ', 'Ｐ', 'Ｑ', 'Ｒ', 'Ｓ', 'Ｔ', 'Ｕ', // C
         'Ｖ', 'Ｗ', 'Ｘ', 'Ｙ', 'Ｚ', 'ａ', 'ｂ', 'ｃ', 'ｄ', 'ｅ', 'ｆ', 'ｇ', 'ｈ', 'ｉ', 'ｊ', 'ｋ', // D
-        'ｌ', 'ｍ', 'ｎ', 'ｏ', 'ｐ', 'ｑ', 'ｒ', 'ｓ', 'ｔ', 'ｕ', 'ｖ', 'ｗ', 'ｘ', 'ｙ', 'ｚ', '0',  // E
+        'ｌ', 'ｍ', 'ｎ', 'ｏ', 'ｐ', 'ｑ', 'ｒ', 'ｓ', 'ｔ', 'ｕ', 'ｖ', 'ｗ', 'ｘ', 'ｙ', 'ｚ', '▶',  // E
         ':',  'Ä',  'Ö',  'Ü',  'ä',  'ö', 'ü',                                                      // F
 
         // Make the total length 256 so that any byte access is always within the array
diff --git a/PKHeX.Core/PKM/Util/Conversion/EntityConverter.cs b/PKHeX.Core/PKM/Util/Conversion/EntityConverter.cs
index 230d0cc36..2d4ae20b7 100644
--- a/PKHeX.Core/PKM/Util/Conversion/EntityConverter.cs
+++ b/PKHeX.Core/PKM/Util/Conversion/EntityConverter.cs
@@ -174,6 +174,7 @@ public static bool IsConvertibleToFormat(PKM pk, int format)
         PB7 { Species: (int)Species.Eevee, Form: not 0 } => IncompatibleForm,
         PB8 { Species: (int)Species.Spinda } => IncompatibleSpecies, // Incorrect arrangement of spots (PID endianness)
         PB8 { Species: (int)Species.Nincada } => IncompatibleSpecies, // Clone paranoia with Shedinja
+        PK9 { Species: (int)Species.Koraidon or (int)Species.Miraidon, FormArgument: not 0 } => IncompatibleForm, // Ride
         _ => Success,
     };
 
diff --git a/PKHeX.Core/PKM/Util/EntityFileNamer.cs b/PKHeX.Core/PKM/Util/EntityFileNamer.cs
index 96e65c483..4775def24 100644
--- a/PKHeX.Core/PKM/Util/EntityFileNamer.cs
+++ b/PKHeX.Core/PKM/Util/EntityFileNamer.cs
@@ -17,6 +17,12 @@ public static class EntityFileNamer
     /// <param name="pk">Input entity to create a file name for.</param>
     /// <returns>File name for the <see cref="pk"/> data</returns>
     public static string GetName(PKM pk) => Namer.GetName(pk);
+
+    /// <summary>
+    /// A list of all available <see cref="IFileNamer{PKM}"/> objects.
+    /// </summary>
+    /// <remarks>Used for UI display.</remarks>
+    public static readonly List<IFileNamer<PKM>> AvailableNamers = [Namer];
 }
 
 /// <summary>
@@ -24,6 +30,8 @@ public static class EntityFileNamer
 /// </summary>
 public sealed class DefaultEntityNamer : IFileNamer<PKM>
 {
+    public string Name => "Default";
+
     public string GetName(PKM obj)
     {
         if (obj is GBPKM gb)
@@ -60,6 +68,14 @@ private static string GetGBPKM(GBPKM gb)
 /// <typeparam name="T">Type that the implementer can create a file name for.</typeparam>
 public interface IFileNamer<in T>
 {
+    /// <summary>
+    /// Human-readable name of the <see cref="IFileNamer{T}"/> implementation.
+    /// </summary>
+    string Name { get; }
+
+    /// <summary>
+    /// Gets the file name (without extension) for the input <see cref="obj"/> data.
+    /// </summary>
     string GetName(T obj);
 }