Scientific marvels can either be beneficial or bedeviling, depending on their application. Doctor Sven Larsen was a leading biologist on Earth-One as Doctor Moag was a prominent geo-physicist on Earth-Two when both discovered phenomenal processes to possess potent powers.
Larsen was vengeful towards Nile Caulder, the Chief of the Doom Patrol, and transformed into the Animal-Vegetable-Mineral Man to combat his former colleague's team. Moag was accidentally transformed by his machine's "Omega effect" into a being that controlled mineral composition of matter. While Larsen could shape shift into animal, vegetable and mineral forms, Moag as the Mineral Master could create synthetic bestial life from the minerals themselves which he used against Steel. Despite their vast array of powers, their foes found the villains' vulnerabilities rendering them inert.