All the enemies are dead except the boss who says he surrenders, what do you do?

[noob]

That is not what the Deathless actually decided to do in the one canon setting where they exist, so I'm not sure where you're pulling this from. As far as I know you can't create a deathless wizard either, since both spells only allow you to create specific creatures, not add templates.


Stating into knocking people out instead of killing them is trivial. At most it's a feat, and in some cases it's as little as a piece of equipment that's cheaper than any printed magic item. If you don't want to spend a feat you can also buy a relatively cheap magic item property that allows you to do so at no penalty. So much for being Good. Apparently taking your enemies nonlethally isn't even worth a feat or a +1 bonus on a weapon(the deals extra damage anyway).

Deathless wizard is a specific kind of creature (with a caster level of 3 and a statblock representing multiple creatures sharing it) not a template.
And participating to the undying court is a job.
As is sitting on a spot awaiting for people to get advice from you.