How to redeem from your console:
1. Sign in to Xbox Live using the account for which you want to use the prepaid code. 2. Press the Guide button on the controller.
3. Go to Games & Apps and select Redeem Code.
4. Enter the 25-character prepaid code and select Done.
5. When prompted, click Yes to confirm the redemption.
How to redeem from a PC:
1. Go to Xbox.com
2. On a computer, go to Redeem Code and sign in from your Microsoft account.
3. Enter the 25-character pre-paid code and click Redeem Code.
To get your sword once you've redeemed your code, just go to the weapons shop in Oakvale as an adult hero (approximately 1 hour into the game).