How to activate:

• Sign into your Account Management Page.
• Click the "Redeem Code" on the "Overview" page.
• Enter your code into the "Enter Registration Code" field.
• Hit Submit to redeem the code and add it to your account.

This bundle includes the following: 

• Festive Hat,
• Item Booster,
• Karma Booster,
• Experience Booster,
• 10 Slot Bag.

About the base game:

Guild Wars 2 offers a diverse character creation experience with five races and eight professions, each further divided into three weight classes. Unlike traditional MMORPGs, Guild Wars 2 doesn't adhere to the typical Tank, DPS, and Healer roles. Instead, characters are versatile with ten skill slots, five determined by their race and profession, one for healing, and four unlocked through in-game progression, including an elite skill.