diff --git a/PKHeX.Core/Legality/Encounters/Data/Live/EncounterServerDate.cs b/PKHeX.Core/Legality/Encounters/Data/Live/EncounterServerDate.cs
index f709d02ad..939aa30dc 100644
--- a/PKHeX.Core/Legality/Encounters/Data/Live/EncounterServerDate.cs
+++ b/PKHeX.Core/Legality/Encounters/Data/Live/EncounterServerDate.cs
@@ -257,6 +257,8 @@ public static class EncounterServerDate
         {0101, new(2025, 10, 31, 2027, 02, 01)}, // PokéCenter Audino Birthday Gift
         {1607, new(2025, 12, 09, 2026, 01, 20)}, // Alpha Charizard
 
+        {0603, new(2026, 08, 28, 2026, 08, 31)}, // Greninja 
+
         {9031, new(2026, 04, 02)}, // Alpha Chikorita
         {9032, new(2026, 04, 02)}, // Alpha Tepig
         {9033, new(2026, 04, 02)}, // Alpha Totodile
diff --git a/PKHeX.Core/Resources/legality/mgdb/wa9.pkl b/PKHeX.Core/Resources/legality/mgdb/wa9.pkl
index efba72fa4..3963d104f 100644
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diff --git a/PKHeX.Core/Resources/legality/mgdb/wc6.pkl b/PKHeX.Core/Resources/legality/mgdb/wc6.pkl
index e656b6531..18ed09e67 100644
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diff --git a/PKHeX.Core/Resources/legality/mgdb/wc6full.pkl b/PKHeX.Core/Resources/legality/mgdb/wc6full.pkl
index 11dc1ebd2..5debb5801 100644
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diff --git a/PKHeX.Core/Resources/legality/mgdb/wc7full.pkl b/PKHeX.Core/Resources/legality/mgdb/wc7full.pkl
index 3b5af2616..f2efedd3f 100644
Binary files a/PKHeX.Core/Resources/legality/mgdb/wc7full.pkl and b/PKHeX.Core/Resources/legality/mgdb/wc7full.pkl differ