Lemuria Impact has a bit too much insta-kill potential at the moment I feel. Powerful spells are alright, within limits, but I'm not a fan of spells that can cause death with little to no warning. Perhaps give it a cast time, a visual indicator, or something along those lines. At this point I feel it's a bit too much of a "point you're dead" spell. Other than that your spells are very creative and enjoyable as a whole ^.^