When you have Leech + Comback Kid, you can't be killed by physical attacks (unless you are standing on a elemental surface that does not allow you to bleed), so you don't need Fortify.
Crafting allows you to enchant your Gear with enough essences to boost your resistance vs all to > 100%.
The opponents won't attack you if they can't see you so moving a few steps away and entering sneak mode (only 1 AP) means that they will just ignore your char.
Lone Wolf is awesome for Glass Cannon chars on hard: Hard reduces your base health to 75% on regular chars, 25% on GC chars and 95% on LW GC chars, almost tripling your HP.
If you want to invest a bit heavier into one element and int (something like 8+3 with gear) you can cast the elemental shields which effectively double your HP.
Last edited by eidolon; 31/07/14 06:57 PM.