This build inspired me to try an "evil cultist" flavor build of sorts with a fresh Cleric using this build - except going Dark Disciple from the beginning instead of later.

The best part about it is, if it ends up not working, it's just an enhancement reset away to become a light disciple and abuse light SLAs.

It is kinda BS that they used Necrotic Bolt for one of the DD dark SLAs, considering you can't apply any metamagics to it. I hope they change that eventually.