Hmm. I just picked horrid wilting to try it out. It's same damage dice as otiluke's freezing sphere so I should get same aoe damage right? Killed about 50 monsters in vale trying to make it crit and after that finally got one crit.
Maximize + Empower + Full cold enhancement lines + Eardweller + Major ice lore(should help if it counts water?)
Normal cast was around 550-630dmg
Crit was (Combat): You hit Kar-Thul Enforcer for 1,070 points of damage.
I think it's not enhanced by water. Took so long to get crit that I don't think water crit lines affect it(had greater arcane lore on too so prob got crit from that). If ice multiplier and major ice lore would work, damage would be much more.
This was not detailed research, just wanted to see how much damage I can pull with it as air savant with full cold enhancements. Not impressed.. Not impressed at all.
Any of you getting higher damage with water savant(higher caster level) or with force enhancements(so that would actually work)?