I don't understand your logic.

Well assuming it can escape from the Prison of Elders, it then has to travel to earth, then has to find my house, then kill me. At the same time, thousands of guardians are killing the Wretched Knight over and over, for fun. I might give it my address to help it out, needs all the help he could get in my opinion.

You don't understand. It not coming as in on it's way. It is actively attacking you. You're gonna want all those guardians at your house.