diff --git a/PKHeX.WinForms/MainWindow/Main.Designer.cs b/PKHeX.WinForms/MainWindow/Main.Designer.cs
index d305dddb2..036d79024 100644
--- a/PKHeX.WinForms/MainWindow/Main.Designer.cs
+++ b/PKHeX.WinForms/MainWindow/Main.Designer.cs
@@ -1597,16 +1597,8 @@
             // 
             this.NUD_Purification.Location = new System.Drawing.Point(110, 1);
             this.NUD_Purification.Margin = new System.Windows.Forms.Padding(0, 1, 0, 0);
-            this.NUD_Purification.Maximum = new decimal(new int[] {
-            0,
-            0,
-            0,
-            0});
-            this.NUD_Purification.Minimum = new decimal(new int[] {
-            100,
-            0,
-            0,
-            -2147483648});
+            this.NUD_Purification.Maximum = new decimal(int.MaxValue);
+            this.NUD_Purification.Minimum = new decimal(0);
             this.NUD_Purification.Name = "NUD_Purification";
             this.NUD_Purification.Size = new System.Drawing.Size(51, 20);
             this.NUD_Purification.TabIndex = 103;
diff --git a/PKHeX.WinForms/MainWindow/Main.cs b/PKHeX.WinForms/MainWindow/Main.cs
index c13d6d77a..2d03f5da6 100644
--- a/PKHeX.WinForms/MainWindow/Main.cs
+++ b/PKHeX.WinForms/MainWindow/Main.cs
@@ -2975,7 +2975,7 @@ namespace PKHeX.WinForms
             if (!fieldsLoaded)
                 return;
             fieldsLoaded = false;
-            CHK_Shadow.Checked = NUD_Purification.Value == 0;
+            CHK_Shadow.Checked = NUD_Purification.Value > 0;
             fieldsLoaded = true;
         }
         private void updateShadowCHK(object sender, EventArgs e)
diff --git a/PKHeX.WinForms/MainWindow/MainCK3.cs b/PKHeX.WinForms/MainWindow/MainCK3.cs
index 236427d92..c0bd39963 100644
--- a/PKHeX.WinForms/MainWindow/MainCK3.cs
+++ b/PKHeX.WinForms/MainWindow/MainCK3.cs
@@ -102,13 +102,11 @@ namespace PKHeX.WinForms
             if (ck3.ShadowID > 0)
             {
                 int puri = ck3.Purification;
-                if (puri > NUD_Purification.Maximum)
-                    puri = 0;
-                else if (puri < NUD_Purification.Minimum)
+                if (puri < NUD_Purification.Minimum)
                     puri = (int)NUD_Purification.Minimum;
 
                 NUD_Purification.Value = puri;
-                CHK_Shadow.Checked = puri < 0;
+                CHK_Shadow.Checked = puri > 0;
 
                 NUD_ShadowID.Value = Math.Max(ck3.ShadowID, 0);
             }
diff --git a/PKHeX.WinForms/MainWindow/MainXK3.cs b/PKHeX.WinForms/MainWindow/MainXK3.cs
index 3731171f7..56b2c093e 100644
--- a/PKHeX.WinForms/MainWindow/MainXK3.cs
+++ b/PKHeX.WinForms/MainWindow/MainXK3.cs
@@ -102,13 +102,11 @@ namespace PKHeX.WinForms
             if (xk3.ShadowID > 0)
             {
                 int puri = xk3.Purification;
-                if (puri > NUD_Purification.Maximum)
-                    puri = 0;
-                else if (puri < NUD_Purification.Minimum)
+                if (puri < NUD_Purification.Minimum)
                     puri = (int)NUD_Purification.Minimum;
 
                 NUD_Purification.Value = puri;
-                CHK_Shadow.Checked = puri < 0;
+                CHK_Shadow.Checked = puri > 0;
 
                 NUD_ShadowID.Value = Math.Max(xk3.ShadowID, 0);
             }