Thanks for the advice all! I thought all the single Eddies & teams with only 1 or 2 allies in there were from people who set up their defenses and then sacrificed teammates. Much appreciated!

Now come on over to the Arena and seek out my unimproved level 60 Mummy Eddie. He'll be hanging out there until the next sacrifice special event. He's not much to look at, but he promises he'll give it a go! :P