Castle exterior

Castle decoration or castle exteriors are items that you can activate to

• modify the appearance of your castle on the world map
• gain various bonuses.

To access the the Dress up screen:

• either tap your castle on the world map and select Castle Exterior,
• or, in the inner city view, enter your castle and tap Change Exterior.

You can view the decoration shop and your already owned decorations here. You can only get an exterior by redeeming the corresponding coupon.

Castle exteriors grant two types of bonuses:

• Owned bonuses are gained upon obtaining the exterior, they are permanent.
• Active bonuses only apply while an exterior is used.

Exteriors are either temporary or permanent. When a temporary exterior expires, its appearance, bonuses and power increase will be removed.

Sources

Castle exteriors generally come as high-end rewards of bigger events, or they can be purchased for dragonglass.