The Forgotten Foes of the Freedom Fighters: Adaptoplasm

Initially when the Freedom Fighters journeyed to Earth-X to battle the Axis Powers, their sole superpowered adversary was a fellow visitor from their native Earth-X, Baron Blitzkrieg. Once the Baron was defeated and retreated back to his home world, the Fighters evidentially faced other superpowered opponents. 

This includes the Adaptoplasm, which manifested from one of the German regime’s supercomputers. The substance used to create these synthetic beings is not dissimilar to that of the lost Freedom Fighter known as Plastic Man, and in an alternate timeline the Axis Powers in fact created such Plastic Men as pawns used versus their foes.

This quartet were perfectly matched to correlate with the capabilities of Ray and Human Bomb of the Fighters, as well as the Justice Leaguer Batman and Justice Socialite Doctor Fate. These four synthetic super humans were their Earth's version of Metamorpho and Doom Patrol members Elasti-Girl, Negative Man, and Beast Boy of Earth-One… as well as Sandy the Silicon Creature and the Earth-Two Patrollers known as Slim, Pedro and Fred of Earth-Two’s version of the Patrol.

While there were no chronicled instances of the Adoptoplasm being used previously, it is hypothetically possible that this was what created a wide range of adversrary which battled the Freedom Fighters throughout the decades.