Brick Wall is back for NBA 2K20 and makes it tougher for a defense to get through or around screens. Players hit by contact from a brick wall lose more energy than normal. It is in the Defense/Rebounding category of badges.
Brick Wall has been a solid badge for multiple years now in that it helps you set good screens, and we don’t expect that to change in 2K20. Just be sure to not double up if you unlock Iron Wall as a Rep Reward (more coming soon).