theres some people aoe´ing as jesters and they do lvl quite a bit faster than "just" 1v1 jesters
how it works:
gather mobs.... possible to tank quite alot due to high/max blockrate (Unicorn would help aswell)
Shoot Arrow rain and while it cools down, 1v1 1 or 2 monsters, depending on your killspeed. arrow rain again after its cooled down.
rinse and repeat.