For Dragons, especially that huge clump around the shrine.. sneak up (flying) until the proximity alarm just goes yellow. Only a few dragons should have seen you at the edge of the clump. . Start bobbing up and down (Being able to fly up and down in turn based mode is really nice ) It's fairly easy to dodge all the breath weapons that way. The dragons that have seen you will start flying sort of in a big circle around you. Once they are far enough away from their friends that you can go to them without any of the other dragons seeing you, fly up to point blank range and shrap-metal the heck out of them. Rinse, lather and repeat. I find that I run out of spellpoints and health at about the same time, so when you do, portal back to NS for a heal, then beacon back to dragonsands for more dragons.
Takes some time, but it works. Titans are a bit easier, you can bob up and down the same as for the dragons and they meteor shower nicely...