Black Goliath

 
 
As the nephew of Bill Foster, Tom comes from a very driven and academic family, populated by Doctors and Attorneys. After the death of his Uncle, Tom met and vowed to the Black Panther that he would break the Pym Particles Formula, and when he did, the Pro-Registration side would pay. 
   
Tom was next seen during the event known as World War Hulk,  where encountered the heroes Hercules, Angel, Namora and Amadeus Cho. These four heroes wanted to help the Hulk, feeling he had been treated poorly by the heroes he fought with. Tom followed them for a brief period, witnessing the Hulk beating Hercules as he tried to tell his old friend they wanted to help. Tom went on to testify on the side of the Hulk, during the gladiatorial battles, where the Hulk pitted the Illuminati against each other.

At the end of the War, Tom was caught up in the aftermath, infiltrating his way into the labs of the Avengers Mansion, and using a third generation particle accelerator to finally perfect the Pym Particle serum, allowing him to grow to a huge size. Siding with the refugees from Planet Skaar, he attacked Iron Man. Iron Man made short work of Tom, untrained as he was, and set off to complete his mission. It was at this point Tom witnessed the two factions of aliens, the Red Skinned people of Skaar and the Insectoids, battling against each other. He tried to prevent them from killing each other, but ended up being hurt by their advanced weaponry. It wasn't until Elloe, made them all warbound by impaling herself on both of their weapons, that the fighting stopped. 
 
Tom, ashamed by his actions brought the dead to Tony Stark before turning his attention to rebuilding the City. Tom then tried to join Damage Control, and after some initial difficulties, he  was allowed to join. Along with many other heroes, he assisted in rebuilding the city, along with battling the Thunderbolts, and calming a now sentient Chrysler Building. 

ALTERNATE REALITIES

What If Iron Man died instead of Captain America?

An unexplained alteration in this realities past averts the assassination of Captain America altogether. One day however as Tony Stark is about to head home from one of Captain America's hearings he is approached by an enraged Tom Foster who blames Tony for the death of his Uncle and is obviously furious over Captain America's inevitable imprisonment. The two quickly get into a heated argument with Tony trying to calm Tom down but in the end everything goes horribly awry as Tom activates the stolen Pym Particles in his system and grows his body to massive proportions. Without even realizing that he has grown Tom plows his fists into Tony several times before stopping to realize that something is amiss. Horrified by his actions Tom allows himself to be taken into custody and is sent to Negative Zone Prison Alpha.