Brainchild was one of Magneto's first Savage Land Mutates, and was involved in the Mutates' subsequent activities.
Several times, using the Savage Land Mutates, Brainchild tried to conquer the Savage Land. In one of these attempts, using a device designed by Magneto, he tried to make Ka-zar kill Deadpool, but was eventually defeated. While trying to escape, Deadpool shot his pterodactylus, making him fall. Later, however, he resurfaced and clashed with Finesse and X-23 while leading a horde of cybernetically enhanced dinosaurs. Later he began to genetically modify dinosaurs and took Devil Dinosaur eggs to do the same with the cubs, however, Moon Boy and Spider-Man recovered the eggs and defeated him. -Marvel Fandom
