Rereading over the Supergirl and the LSH and I realize that Earth Prime has a Kandor. These Kandorians are native of Earth Prime, so does that mean we have a group of characters with powers of the Silver Age Superman?

This makes sense that Brainy would charge the 3-boot legion with protecting the multiverse from Superboy Prime. It's not that they're any more powerful than the other Legions, but they have a relationship with a group of Kryptonians who are 1) just as powerful as Superboy Prime and 2) 1,000 years more advanced, physiology-wise, than Superboy.

- l.k.