No, we don't have dominion over the mighty. That's ridiculous.

"If witches are chasing you, check your salvation. Ephesians 2:6, Kings 17:1. When enemies try to attack anyone connected to God, all they need to do is to forbid it. 2kings 4:18-37. When you are connected to the almighty you have dominion over the mighty. Acts 17:11-19."

That's all idiocy and a misinterpretation of scripture.