diff --git a/PKHeX.Core/Legality/Encounters/Generator/EncounterEggGenerator.cs b/PKHeX.Core/Legality/Encounters/Generator/EncounterEggGenerator.cs
index 1d036bbfd..c06dc7611 100644
--- a/PKHeX.Core/Legality/Encounters/Generator/EncounterEggGenerator.cs
+++ b/PKHeX.Core/Legality/Encounters/Generator/EncounterEggGenerator.cs
@@ -24,8 +24,8 @@ public static IEnumerable<EncounterEgg> GenerateEggs(PKM pkm, IReadOnlyList<EvoC
             int gen = pkm.GenNumber;
             if (gen <= 1)
                 yield break; // can't get eggs
-            if (FormConverter.IsTotemForm(species, pkm.AltForm, gen))
-                yield break; // no totem eggs
+            if (NoHatchFromEggForm(species, pkm.AltForm, gen))
+                yield break; // can't originate from eggs
 
             // version is a true indicator for all generation 3-5 origins
             var ver = (GameVersion)pkm.Version;
@@ -52,6 +52,15 @@ public static IEnumerable<EncounterEgg> GenerateEggs(PKM pkm, IReadOnlyList<EvoC
             }
         }
 
+        private static bool NoHatchFromEggForm(int species, int form, int gen)
+        {
+            if (FormConverter.IsTotemForm(species, form, gen))
+                return true;
+            if ((species == (int) Species.Sinistea || species == (int) Species.Polteageist) && form != 0) // Chipped = impossible
+                return true; // can't get Chipped eggs
+            return false;
+        }
+
         // Gen6+ update the origin game when hatched. Quick manip for X.Y<->A.O | S.M<->US.UM, ie X->A
         private static GameVersion GetOtherTradePair(GameVersion ver)
         {