Once you have entered the Arena of Heroes, you may not exit without defeating at least one challenger. If you wish to leave after that, inform Fip and the
Terraporter
will become active.
If anyone in the group is too high, they must
mentor
down BEFORE you engage the first challenger or you will have trivialized the Arena and no experience nor treasure will be awarded.
Killing the mini-murks throughout the room, then killing him
The mini-murks will run to the big one and sacrifice themselves when he is at about 20% HP. He will then be at FULL Health & Power. They do it one at a time, so kill those mini-murks fast.