Fan Casting Time to get bigger in Ant-Man & Wasp

Hank blames himself for Darren's death, believing that if he had been faster, smarter, or whatever he could have been, he could have helped. He has been having nightmares and hasn't been able to sleep properly since then. He begins working on Pym particles, wondering if instead of just shrinking, he could also grow. He would be more useful and stronger. With the help of his AI, Ultron, he starts working on this.