Ancient artifacts of alchemy discovered by our two European gave them near unlimited abilities yet they did not use them to the full.
Drabny located a life extending liquid, a mind-over-matter controlling helmet, and googles giving him farsightedness. Galio discovered the elixir of youth, the secret of perpetual youth, the Philosopher's Stone and the Universal Solvent.
Drabny turned to crime, battling Earth-One's Challengers of the Unknown solo then alongside the League of Challenger-Haters before perishing. Galio sought out the heroic Justice Society of Earth-Two to pass along his secrets but died, leaving them in the hands of a supervillain instead.