Whoa! [He has to move back a little as small boulders suddenly rise up from the ground -- but when the surprise fades, he just looks delighted.]
That's just like Edna! A friend of mine, she can control the earth element, too. But she's really old, even though she doesn't look like it, so she's had a long time to get as good as she is. I'm sure she'd be really impressed, too! [Since you are SO TINY and still so good at this!!]