I have a samurai in a WotW campaign who will be becoming a vampire, through the feat chain listed in the campaign. So far I have mostly used my resolve for the unstoppable ability.
Unstoppable: When the samurai is reduced to fewer than 0 hit points but not slain, he can spend one use of his resolve as an immediate action to instantly stabilize and remain conscious. He is staggered, but he does not fall unconscious and begin dying if he takes a standard action. He does fall unconscious if he takes additional damage from any source.
While making an honorable stand, the samurai is immune to the shaken, frightened, and panicked conditions. He does not fall unconscious while his hit point total is below 0.
If reduced to 0 hit points in combat, a vampire assumes gaseous form (see below) and attempts to escape. It must reach its coffin home within 2 hours or be utterly destroyed. (It can normally travel up to 9 miles in 2 hours.) Additional damage dealt to a vampire forced into gaseous form has no effect. Once at rest, the vampire is helpless. It regains 1 hit point after 1 hour, then is no longer helpless and resumes healing at the rate of 5 hit points per round.
Also there is this 3rd party feat from Fire Mountain Games, which is who made the WotW campaign, so there would be no issue with me using it in this campaign which would clearly allow Unstoppable to work.
Benefits: Instead of instantly being destroyed or forced into gaseous form at zero hit points, you instead remain intact until you are reduced to your negative Charisma score. Though you fall seemingly dead, you can be restored by negative energy (or blood in the case of vampires) as normal. However if you have not been healed after minutes equal to your level have passed, then you suffer the normal consequences of being reduced to zero hit points.
Normal: As a vampire or a lich you are immediately destroyed (or forced into gaseous form) at zero hit points.
Just wondering if the feat would be necessary, as being a vampire eats up 5 feats already and also in the case of not using 3rd party material.
Neither will function and you will go back to your coffin or be destroyed.
Yeah you would have to take Lingering Spirit to have an effect from unstoppable and honorable stand.