[action]
[ He avoids the knee and raises a hand against the boy's fiery fist, forming a small frontal invisible barrier which manages to reduce the impact but it still sends him flying back and crashing to the ground on his back.
In a struggle to subdue the other, he strains himself to project his power and unless Emil is fast enough to move out of the way, he'll find that any attempt to proceed forward will be futile, though it will appear to be nothing in sight that could be blocking his path.]