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 element altering helmet, and googles giving him farsightedness that granted him a levitating vehicle. Galio discovered the elixir of youth, the secret of perpetual motion, the element altering 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.