Always watch for and kill ogres.
1:Stay in around here for the most part
2:Watch the sharkens here. Especially the poison proofs. They take a few seconds to start charging.
3:Watch these areas for big mob clump ups and especially sharken hordes
4:These areas will need repaired from time to time. If your extra characters have damaging pets or weapons these are good spots to put them
5:Fight the boss here and kill sharkens whenever they clump up in the area.
Black arrow: Put an afk controller with an op pet down for wyverns.