Force Spells above level 4 other than Disintegrate -
Cyclonic Blast (lvl 5) - this will take a hit as an Earth Savant though
Horrid Wilting (lvl 8) - good against living enemies only
I'm not into the Earth Savant, but if I were I'd probably have cold as my secondary as it is the most versatile element currently. There is good DD in Frost Lance, and Polar Ray. Good AE in Cone of Cold and Otiluke's. Good DoT in Niac's and even good persistent AE in Ice Storm. It is also my secondary damage of choice on my Air Savant, so I might be a little biased.
