Board Thread:Supergirl discussions/@comment-3221148-20190312200331/@comment-3221148-20190312213638

Lex Luthor was being set to be THE big villain since Cadmus. And with Ben Lockwood, there was always an air of Luthor's machinations behind him, Mercy and her brother setting up to be the Agent of Liberty and the whole Black Budget at L-Corp plot (which, obviously, was unconnected to Lena, since we'd see her working on completely different things every episode).

If anything, I'm scared that Lex will end up being a one-episode villain, and, like Lois, will be left for future use in the Superman series.