Baking Impossible is fun, and I say this as someone who never watches baking or competitive reality shows. The idea is to combine a baker with an engineer in a team to make various silly items, all if which much operate and simultaneously be edible. For example in the first episode they have to build an entirely edible boat that can sail a course (do not make the mistake I did and assume that means a life sized boat )
It suffers a bit from trying too hard to inject drama, but the engineering aspect keeps it fun and engaging.
Sounds like Legomasters. Cool concept but they try too hard to make it dramatic.