Challenge Rift - Week 35:
Challenge Rift Week 35 is live! With the start of Season 13 this Friday, we recommend that you do not complete your challenge rift until the season officially begins in your region and you've created a new seasonal character! By waiting until after you have a Season 13 character created or re-birthed, you will ensure that the cache rewards will be given to your fresh seasonal character. This will give you a healthy boost in the form of gold and crafting materials!
If you are curious how Challenge Rift builds are chosen each week, you can view this official blog post!