user wrote:
if only 1 element tree, then get lightning
if 2, fire and lighting
+1
Lightning is great when you're fighting non-aggro mobs of lower level than you, because of the transfer range of the lightning nuke. Especially good for a hybrid who can make them attack and use a Ghost Spear to finish them off.
Fire does more damage though, and I would really suggest you get both. You NEED Lightning for the Piercing Force series, and Grass/Ghost/Phantom walk can be a real lifesaver (not to mention how much TIME you save). The Lion Shout is also great, especially for mobs that don't quite die from one nuke - just finish them off with a Lion Shout and move to the next.