You need a version of AOCbuddy in which the no-gravity option works (I think he disabled it in the latest version because of this).
This works best on melee mobs, pull around 2/3 mobs and jump 4 times, stand still. Almost every time they don't attack you and you can kill them.
For some reason pulling more than 4+ allows them to attack you, or I might be doing something wrong.
Have fun lvling
edit, for more mobs you need more jumps