diff --git a/docs/development/CENTRAL.md b/docs/development/CENTRAL.md
index 5dc4b02..323958e 100644
--- a/docs/development/CENTRAL.md
+++ b/docs/development/CENTRAL.md
@@ -64,3 +64,4 @@
 - [Synchronized Display Boundaries](./devlog/2025-12-17-030000_synchronized_boundaries.md): Completed. Aligned "Art Crop" and "Preview Suppression" thresholds to 200px (50% slider value) for a unified UI behavior.
 - [Squared Art Crops](./devlog/2025-12-17-030500_squared_art_crops.md): Completed. Enforced square aspect ratio for art-crop thumbnails to optimize visual density and stacking.
 - [Fix Expansion Generation Limit](./devlog/2025-12-17-024500_fix_expansion_generation_limit.md): Completed. Implemented "Unlimited Pool" mode for expansion drafts to allow generating large numbers of packs from singleton set data.
+- [Change Default Filter Flags](./devlog/2025-12-17-025500_change_default_flags.md): Completed. Updated client and server defaults for "Ignore Basic Lands", "Ignore Commander Sets", and "Ignore Tokens" to be unchecked (false).
diff --git a/docs/development/devlog/2025-12-17-025500_change_default_flags.md b/docs/development/devlog/2025-12-17-025500_change_default_flags.md
new file mode 100644
index 0000000..ddf953e
--- /dev/null
+++ b/docs/development/devlog/2025-12-17-025500_change_default_flags.md
@@ -0,0 +1,19 @@
+
+# 2025-12-17 Change Default Filter Flags
+
+## Objective
+Change the default state of the "Ignore Basic Lands", "Ignore Commander Sets", and "Ignore Tokens" flags from checked (true) to unchecked (false) to match user preference.
+
+## Changes
+1.  **Client-Side (`src/client/src/modules/cube/CubeManager.tsx`)**:
+    *   Updated the initial state of the `filters` object.
+    *   The defaults for `ignoreBasicLands`, `ignoreCommander`, and `ignoreTokens` are now `false`.
+    *   This affects new users or sessions where `localStorage` does not have saved preferences.
+
+2.  **Server-Side (`src/server/index.ts`)**:
+    *   Updated the default fallback values for `filters` in the `/api/packs/generate` route.
+    *   If no filters are provided in the request payload, the server now defaults these flags to `false`.
+
+## Verification
+*   Verified that the variable names match the UI labels.
+*   Verified that the logic correctly implements "unchecked" by setting the boolean values to `false`.
diff --git a/src/client/src/modules/cube/CubeManager.tsx b/src/client/src/modules/cube/CubeManager.tsx
index a3563ab..7a6a3fc 100644
--- a/src/client/src/modules/cube/CubeManager.tsx
+++ b/src/client/src/modules/cube/CubeManager.tsx
@@ -53,15 +53,15 @@ export const CubeManager: React.FC<CubeManagerProps> = ({ packs, setPacks, onGoT
     try {
       const saved = localStorage.getItem('cube_filters');
       return saved ? JSON.parse(saved) : {
-        ignoreBasicLands: true,
-        ignoreCommander: true,
-        ignoreTokens: true
+        ignoreBasicLands: false,
+        ignoreCommander: false,
+        ignoreTokens: false
       };
     } catch {
       return {
-        ignoreBasicLands: true,
-        ignoreCommander: true,
-        ignoreTokens: true
+        ignoreBasicLands: false,
+        ignoreCommander: false,
+        ignoreTokens: false
       };
     }
   });
diff --git a/src/server/index.ts b/src/server/index.ts
index c35eb79..62f98af 100644
--- a/src/server/index.ts
+++ b/src/server/index.ts
@@ -139,9 +139,9 @@ app.post('/api/packs/generate', async (req: Request, res: Response) => {
 
     // Default filters if missing
     const activeFilters = filters || {
-      ignoreBasicLands: true,
-      ignoreCommander: true,
-      ignoreTokens: true
+      ignoreBasicLands: false,
+      ignoreCommander: false,
+      ignoreTokens: false
     };
 
     const { pools, sets } = packGeneratorService.processCards(poolCards, activeFilters);