New Character Hacks keybind:
Teleport Behind Single Target — Constantly updates your position so that you are behind the mob currently targeted at the time of the keypress. This results in your target spinning and will often prevent him/her from casting any abilities. If the mob's ID changes or the mob's HP reaches 0, this function will automatically cease.
The above function differs from "Teleport Behind Target" in that it will only lock you to the mob you are targeting at the time of the keypress. You can freely change your target, and the teleport will continue to work.
This requires updating Speeder to the newest version.