here is a very simple and fast way to reach level 5-6 in presear in under 1 hour.First go get the quest from the ele lady by the tower who gives you firestorm next move far off to the right side so that the ice elementals wont chase you.let them attack the ele lady wait for all 3 waves to attack her then once there all grouped up use firestorm on them and kill them all at same time gives you lots of xp here are some pics.
before you kill them
after you kill them
they got some pretty good drops doing this 2 i got 1 green,2 yellow 2 silver and a blue in about 10 runs.
sry if its hard to tell i used photobucket so it resized the pics, but you can tell by looking at the xp bar.