I give up 150 or so spell damage or 1000 max magicka for it. What I get back is 3 mortar shots that do 2-3k each on an enemy, every six seconds when refreshing a shield.
I'm not really sure it's worth it.
1. The mortars stutter and stunt what is usually smooth combat when they go off. Combat doesn't feel as smooth because you stop for a fraction of a second to fire those animations. Maybe it's just lag? But it didn't *feel* right, it made it harder to dodge easy telegraphed attacks or streak off under fire.
2. It targets mobs half of the time that you don't want. I was fighting a 3vMe, killed one. Almost had the second and I ended up aggroing a whole lion den that was far off behind me.
3. The damage is about one force pulse crit. It's good, but a bigger frag and curse might be better.
I think this one might be better left for a dual wield build. Comments? Experience? Or am I crazy and this is the best thing ever?