Edited November 17, 2017
at 09:57 AM
Grab this quick for it is most likely an error on Walmart's side!
Shadow of War Gold Edition - Digital Delivery is going for $9.99 +tax. I purchased my copy, confirmed the amount charged, and 5 minutes later received my code for redemption with Microsoft. Of course I immediately redeemed it, and you should do so too!
EDIT: Turns out the same code is eligible for you to receive the PC version through your Microsoft account. Counts as an Xbox Play Anywhere title!