diff --git a/Legality/Checks.cs b/Legality/Checks.cs
index 4f8cd46e9..f7c884dd0 100644
--- a/Legality/Checks.cs
+++ b/Legality/Checks.cs
@@ -807,7 +807,7 @@ private LegalityCheck verifyForm()
                     break;
             }
 
-            return pk6.AltForm > 0 && (Legal.BattleForms.Contains(pk6.Species) || Legal.BattleMegas.Contains(pk6.Species))
+            return pk6.AltForm > 0 && new[] {Legal.BattleForms, Legal.BattleMegas, Legal.BattlePrimals}.Any(arr => arr.Contains(pk6.Species))
                 ? new LegalityCheck(Severity.Invalid, "Form cannot exist outside of a battle.")
                 : new LegalityCheck();
         }
diff --git a/Legality/Tables.cs b/Legality/Tables.cs
index 653ec34b5..84437cf83 100644
--- a/Legality/Tables.cs
+++ b/Legality/Tables.cs
@@ -488,6 +488,7 @@ public static partial class Legal
             531,
             719
         };
+        internal static readonly int[] BattlePrimals = {382, 383};
         internal static readonly string[][] TradeXY =
         {
             new string[0],                       // 0 - None