Mon-El

In the "Superman" stories, the fictional character Mon-el is a Daxamite from the planet Daxam. He landed on Krypton and was given a map to Earth. He then went into suspended animation. After a few years he landed and met Superboy. They became good friends. Under Earth's yellow sun he had powers like Superman's. Daxamites are affected by lead and Kryptonite in the same way as Kryptonians. After heavy lead exposure he was dying, so Superboy put him in the Phantom Zone to stop his dying. In the 30th century Brainiac5 created an antidote to lead and released him so Mon-el then joined the Legion of Super-Heroes.