He was a brilliant biochemist, and the lab partner of Hank Pym. He memorized the formula for the creation of the "Pym Particles that enable people to shrink (like The Wasp) and grow (like Giant-Man) and notably improved on them when he experimented on himself with them, creating a strain of the particles that gave him super-hearing and resistance to mental intrusion.
Yeah, he was called "Black Goliath" briefly - although it's notable that he took that name himself, and that he did so while try to show an ex-girlfriend how far he's fallen from his true potential - and generally wasn't as visible a superhero as some, but, still, he was pretty darned boss.
Interestingly, he shows up in the Civil War MHRPG book, which I recently purchased, and the write-up they provide is quite similar to my own. Yay for synchronicity!
Brain for Science
Pym Particle Powers
Enhanced Senses 1d8
Enhanced Stamina 1d8
Psychic Resistance 1d10
Superhuman Durability 1d10
Superhuman Strength 1d10
SFX: Area Attack - Add a 1d6 and keep an additional effect die for each extra target.
SFX: Gamble - Add a die to the doom pool to double a Pym Particles power for one action.
SFX: Multipower - Use two or more Pym Particle powers in a single dice pool at -1 step for each additional power.
SFX: Take It For The Team - Step up physical stress inflicted on an ally to take it yourself.
Limit: Exhausted - Shutdown Pym Particle Powers to gain 1 PP. Recover by activating an opportunity or during a Transition Scene.
Combat Expert 1d8
Medical Expert 1d8
Psych Expert 1d8
Science Master 1d10
Tech Master 1d8
Vehicle Master 1d8