Hello, brief exploit for you (I couldn't find any other posts about it, but maybe they've all been deleted).
It seems that the 'Rocket Bot' (Sorry if that's not the name, but I'm sure you've seen them running about) can be summoned in arena! (Woohoo...) This is great because it attacks the target you tell it too, creating pushback and keeping them from leaving combat to drink/eat!
Just a lil tip. Enjoy your Christmas, everyone!
( I thought this was appropriate under exploits because I don't think it's supposed to be usable in arena).
Edit: Sorry folks, it's real name is 'Clockwork Rocket Bot'... I was close D