User blog comment:Hiepelines/ur-dragon , how can i ..?/@comment-23878607-20141104124922

As a Sorcerer, you will need to use optimal augments for maximum power from your weapon and combine it with your most powerful mobile attack, the Holy-buffed Focused Bolt. Hold the Light Attack button down until the top of your archistave pops with a special effect, then release it. You can charge this while running.

Recommended augments are Acuity, Attunement, Emphasis, Articulacy, Ferocity and Bastion for an additional +50 to your DEF stat (it's invisible, though).

Assuming you have at least a Dragon's Risen (if not a more powerful weapon by now), you should be able to take the offline Ur in one round using these tips. If you're still having problems, then use 4 Demon's Periapts at a time (they stack) to double your magick attack-- again, this is an invisible boost.

Wait until the online Dragon is in its Grace period to try for a kill. While any damage you do during its lifetime helps towards its demise, you can only get a kill right as it's about to die or in that 40-minute grace period. The Dark Arisen board on GameFaqs keeps track of each Gen's health for the PS3, so you won't be caught by surprise.