diff --git a/PKHeX.Core/Legality/Encounters/Data/Live/EncounterServerDate.cs b/PKHeX.Core/Legality/Encounters/Data/Live/EncounterServerDate.cs
index 74759ff1f..3f6bf4af5 100644
--- a/PKHeX.Core/Legality/Encounters/Data/Live/EncounterServerDate.cs
+++ b/PKHeX.Core/Legality/Encounters/Data/Live/EncounterServerDate.cs
@@ -188,6 +188,7 @@ public static bool IsValidDateWC9(WC9 card, DateOnly obtained) => (WC9Gifts.TryG
         {0031, (new(2023, 11, 01), new(2025, 02, 01))}, // PokéCenter Birthday Charcadet and Pawmi
         {1006, (new(2023, 11, 02), new(2024, 01, 01))}, // Korea Bundle Fidough
         {0508, (new(2023, 11, 17), new(2023, 11, 21))}, // Alex's Dragapult
+        {1526, (new(2023, 11, 22), new(2024, 11, 01))}, // Team Star Revavroom
 
         {9021, HOME3_ML}, // Hidden Ability Sprigatito
         {9022, HOME3_ML}, // Hidden Ability Fuecoco
diff --git a/PKHeX.Core/Resources/legality/mgdb/wc9.pkl b/PKHeX.Core/Resources/legality/mgdb/wc9.pkl
index 1f3a53ed4..7c3e83f3d 100644
Binary files a/PKHeX.Core/Resources/legality/mgdb/wc9.pkl and b/PKHeX.Core/Resources/legality/mgdb/wc9.pkl differ