With that kind of HP, you might as well put on red tearstone and go full on glass cannon.
Someone could literally run up and fire a GC, and if you don't ninja flip it'll kill you. Actually, most well-put together builds can 1-shot 500ish hp. You could easily die to someone firing a CSS or some such as you fire the orb and just trading hits.
On the plus side if you do go tearstone the lollerdamage is enormous.
This isn't aimed just at you by any means Rynn, but do most people enjoy the dark magic builds? I understand, especially in the case of Rynn's build, that there's skill involved in appropriate zoning and avoiding damage but I just don't feel satisfied when my damage comes from tapping R1. Maybe it's just me, but I feel like melee combat is significantly more entertaining to play with than magic.
You should join the pyro ranks
. Manual aimed fireballs are very fun, and so is 1-shotting gankers that walk into fire tempest!
Yes, you can no-skill your way to wins with GC (bellowing + crown + PW), but it's more fun to kill people with surge, manual aimed fireballs (at least as skillful as melee), or less conventional pyromancies.