For Meatball's exercise, it was a bit harder because there was no one with abilities similar to his powers at all.
In the end, they got a wind elementalist, Eagle, and the earth elementalist, Mao, to help out.
They were the people they trusted who had skills that could, in a sense, mimic Meatball's to a degree.
Mao was unaware of what he was getting into. He was called in to help train the 'younger generation', having no idea who it would be and why they were doing it in the bunkers at all.
He did not know the trainee was a baby, and that the ability was something he had never seen before!
On the other hand, Eagle was privy to it because he practically lived with them during the Cold Wave. Along with the other people, he, too, was one of those who had panic attacks because of the babies every so often.
