I've noticed that, for some reason, heighten doesn't seem to affect my earthquake at all. There is no increased cost, and I don't know if my DC is going up or not (since it's not displayed). I've tried right-click setting the heighten meta to be always on, I've tried leaving it standard and clicking heighten from my hotbar, and gotten nowhere. I realize it would only be a +1 bump to the DC since it's a level 8 spell -> level 9 but that +1 DC could be the one that knocks those stupid archers down. Anyone care to fill me in on why it might not be working? Speculation? Solid facts I should have known and will feel like an idiot when you point it out? All welcomed.
Another thing I was wondering about was if caster level had any effect on the DC of my earthquake, or just the damage. While I am in water elemental form, I'm casting earthquake @ level 14 (only 17 levels or druid, and not in PA destiny). I don't care about the damage from the spell at all; I use it as crowd control. If there is no negative effect to the decreased caster level with regard to my DC, I'll continue to romp around in water ele form. If it does change the DC then I'll have to keep out of form.
I appreciate any input!