For the Brand registry, you’ll first need to get a trademark, which is exactly what is going to protect your rights on Amazon, with the brand registry you can protect your brand from hijackers, counterfeits, and more, now for the part of the ranking, it will allow you to use brand features, such as A+ content, posts, storefront, brand campaigns, etc. you can use these to have better brand visibility, first impression, that can lead to more sales and eventually better ranking.
