diff --git a/PKHeX.Core/Legality/Areas/EncounterArea4.cs b/PKHeX.Core/Legality/Areas/EncounterArea4.cs
index e6550de31..6e29de5bc 100644
--- a/PKHeX.Core/Legality/Areas/EncounterArea4.cs
+++ b/PKHeX.Core/Legality/Areas/EncounterArea4.cs
@@ -77,8 +77,12 @@ private IEnumerable<EncounterSlot4> GetSlotsMatching(IReadOnlyList<EvoCriteria>
                     if (slot.Species != evo.Species)
                         continue;
 
-                    if (slot.Form != evo.Form && !FormInfo.WildChangeFormAfter.Contains(slot.Species) && slot.Species != (int)Species.Unown)
-                        break;
+                    if (slot.Form != evo.Form && slot.Species is not (int)Species.Burmy)
+                    {
+                        // Unown forms are random, not specific form IDs
+                        if (!slot.IsRandomUnspecificForm)
+                            break;
+                    }
                     if (!slot.IsLevelWithinRange(lvl))
                         break;
 
@@ -88,6 +92,7 @@ private IEnumerable<EncounterSlot4> GetSlotsMatching(IReadOnlyList<EvoCriteria>
             }
         }
 
+        // original met level cannot be inferred
         private IEnumerable<EncounterSlot4> GetSlotsFuzzy(IReadOnlyList<EvoCriteria> chain)
         {
             foreach (var slot in Slots)
@@ -97,8 +102,12 @@ private IEnumerable<EncounterSlot4> GetSlotsFuzzy(IReadOnlyList<EvoCriteria> cha
                     if (slot.Species != evo.Species)
                         continue;
 
-                    if (slot.Form != evo.Form && !FormInfo.WildChangeFormAfter.Contains(slot.Species) && slot.Species != (int)Species.Unown)
-                        break;
+                    if (slot.Form != evo.Form && slot.Species is not (int)Species.Burmy)
+                    {
+                        // Unown forms are random, not specific form IDs
+                        if (!slot.IsRandomUnspecificForm)
+                            break;
+                    }
                     if (slot.LevelMin > evo.Level)
                         break;
 
diff --git a/PKHeX.Core/Legality/Areas/EncounterArea5.cs b/PKHeX.Core/Legality/Areas/EncounterArea5.cs
index d541df943..23ddaa47d 100644
--- a/PKHeX.Core/Legality/Areas/EncounterArea5.cs
+++ b/PKHeX.Core/Legality/Areas/EncounterArea5.cs
@@ -60,7 +60,7 @@ public override IEnumerable<EncounterSlot> GetMatchingSlots(PKM pkm, IReadOnlyLi
                     if (!slot.IsLevelWithinRange(pkm.Met_Level))
                         break;
 
-                    if (slot.Form != evo.Form && !FormInfo.WildChangeFormAfter.Contains(slot.Species))
+                    if (slot.Form != evo.Form) // no wild forms can change
                         break;
 
                     yield return slot;
diff --git a/PKHeX.Core/Legality/Areas/EncounterArea6XY.cs b/PKHeX.Core/Legality/Areas/EncounterArea6XY.cs
index 5e73e0814..aaf20bf4b 100644
--- a/PKHeX.Core/Legality/Areas/EncounterArea6XY.cs
+++ b/PKHeX.Core/Legality/Areas/EncounterArea6XY.cs
@@ -113,8 +113,9 @@ public override IEnumerable<EncounterSlot> GetMatchingSlots(PKM pkm, IReadOnlyLi
                     if (!slot.IsLevelWithinRange(pkm.Met_Level))
                         break;
 
-                    if (slot.Form != evo.Form && !slot.IsRandomUnspecificForm && !FormInfo.WildChangeFormAfter.Contains(slot.Species))
+                    if (slot.Form != evo.Form && !slot.IsRandomUnspecificForm && slot.Species is not ((int)Species.Burmy or (int)Species.Furfrou))
                     {
+                        // Only slot that can be form-mismatched via Pressure is Flabébé
                         if (slot.Species != (int)Species.Flabébé)
                             break;
 
diff --git a/PKHeX.Core/Legality/Areas/EncounterArea7.cs b/PKHeX.Core/Legality/Areas/EncounterArea7.cs
index 12609cec5..04374d9ee 100644
--- a/PKHeX.Core/Legality/Areas/EncounterArea7.cs
+++ b/PKHeX.Core/Legality/Areas/EncounterArea7.cs
@@ -60,7 +60,7 @@ public override IEnumerable<EncounterSlot> GetMatchingSlots(PKM pkm, IReadOnlyLi
                     if (!slot.IsLevelWithinRange(pkm.Met_Level))
                         break;
 
-                    if (slot.Form != evo.Form && !FormInfo.WildChangeFormAfter.Contains(slot.Species))
+                    if (slot.Form != evo.Form && slot.Species is not ((int)Species.Furfrou or (int)Species.Oricorio))
                     {
                         if (!slot.IsRandomUnspecificForm) // Minior, etc
                             break;
diff --git a/PKHeX.Core/Legality/Areas/EncounterArea8.cs b/PKHeX.Core/Legality/Areas/EncounterArea8.cs
index d409fd8d9..cc2e6e90d 100644
--- a/PKHeX.Core/Legality/Areas/EncounterArea8.cs
+++ b/PKHeX.Core/Legality/Areas/EncounterArea8.cs
@@ -62,7 +62,7 @@ private IEnumerable<EncounterSlot8> GetUnboostedMatches(IReadOnlyList<EvoCriteri
                     if (!slot.IsLevelWithinRange(metLevel))
                         break;
 
-                    if (slot.Form != evo.Form && !FormInfo.WildChangeFormAfter.Contains(evo.Species))
+                    if (slot.Form != evo.Form && slot.Species is not (int)Species.Rotom)
                         break;
 
                     if (slot.Weather is Heavy_Fog && IsWildArea8(Location))
@@ -90,7 +90,7 @@ private IEnumerable<EncounterSlot8> GetBoostedMatches(IReadOnlyList<EvoCriteria>
                     if (slot.LevelMin > BoostLevel)
                         break; // Can't downlevel, only boost to 60.
 
-                    if (slot.Form != evo.Form && !FormInfo.WildChangeFormAfter.Contains(evo.Species))
+                    if (slot.Form != evo.Form && slot.Species is not (int)Species.Rotom)
                         break;
 
                     if (Location != metLocation && !CanCrossoverTo(Location, metLocation, slot.SlotType))