I've been playing this build for a while now and it works pretty good for me, solo and mostly team fights for full effectiveness. Solo-ing before level 10 it's not really indicated but if you do perfect timing with your spells you will succeed. Nova is 50-50 she's either very deadly or very squishy depending on your team and how they play together. Once you are at lvl 20 she can take on the whole team if you have a tank and support.