Hydrosophist skill Water of Life heals in an area.
If you have full Zombies party you can heal them with poison barrels if there are some around or cast the Geomancer spell Deadly Spores (note that it's a master level) or the poison field just north of the Cyseal north portal.
Try to engage enemies that are at your level or lower and you won't die so much.

Last edited by xiery; 08/11/15 01:48 PM.