Created this quick guide because this is the best talent build for Zarya that I've used thus far. She can deal moderate damage with Feel the Heat, and Explosive Barrier coupled with that helps clear lanes quickly. Being unstoppable helps escape a jam, and she will be in battles a lot. Gain Train is invaluable in team fights, granting an additional ally shield, and Graviton Surge is like a more powerful, ranged mosh pit. Enjoy!