Quote Originally Posted by Nerd-o-rama View Post
Rules are fuzzy on what spell effects end when the caster is destroyed vs. what aren't, so it could be a legitimate inconsistency. It's also possible that when Durkon's personality took back control of the vampire body, he dismissed the Dominate effect as a free action at the same time dropped the Anti-Life Shell and let Belkar stab him.
RAW is pretty clear afaik, spells don't automatically end upon the death of the caster unless they their duration is Concentration (as a caster obviously can't concentrate on anything if they are dead). Dominate Person lasts 1 day per caster level, and in addition since it does not have (D) in its duration, Durkon* would have needed to cast dispel magic (albeit auto-succeeding on a dispel check) to break the spell.

That said, the comic isn't following DnD rules to the letter. The above interaction with Dominate Person is (imo) dumb and very counterintuitive.