It won't be as interesting as you think...

I'm lazy and have no idea what the death field is supposed to do (Or why it is such a good idea...). Just say Deamon for whatever reason goes into throne room and activates it. (But do not say he went in there to gloat or anything, no cliche idiot villian moves)

But wouldn't Daemon going into the throne room, and activating it kill him?

It's a field of the Death spell, that will not miss. Ever. It touches you, you die. Plain and simple, which is why we're using the AM fields to stop it from hitting us.

Well, at least you understand how the trap works...

Deamon: *Enters throne room* I hope I don't activate a trap or anything.
Death Field: Muwuahahah! I is activaterd! *Pops up and eats Deamon* Burp!
Arc: Whee! He's dead!
Deamon: *Five seconds later appears back at the Demon's Gate* Ouch. That hurt. Oh well, it can't kill me, permanently anyway. I'm just that bad ass. ^_^ *Does a dance*
Arc: Oh poopie.

That's basically what's going to happen. Demons go back to wherever they came from when they die, and from there they can reenter our world through the gate. That's how it's going to be, until the gate is sealed or something else happens.

Your right on the idea, but wrong on this specific subject.

Well... it MIGHT miss... but then it hits you again, and again, and again, and again... like, once every nano-second... so you die in no-time flat anyway.

And yah... It should kill him and send him back to the gate... along with most of the other demons in Preos... neglecting any that are flying high enough above the city to avoid the field. And then Deamon would probably get pissed off and think of some way to disable the death field...

I'd guess he'd enter the throne room because there's absolutely no one anywhere else in the city... so that'd be the place to look.

Just say the orb comes up.

Edit - This is an Ecurt aproved thing, thouhg I think he forgot...

.... Then what is he, temperarily banished? It will kill him and every other demon when it is activated, so it's not like Deamon will activate the trap, then stand there in the field alive and say, "I'm so bad ass, I'm totally immune to things that would kill anything else on earth."...

EDIT - Perhaps Ecurt can tell us why Deamon is suddenly immune to the Death Field then...

1) FF world, there are many monsters immune to magic (And death).

2) Deamon can make his own little anti-magic field. It can only cover him, but he can do it. (And despite the fact that I am the bad guy, he's now allowed to do much while under his anti-magic field)

That, or I can say he has the anti-magic field he stole from Cecil a long, long time ago.

I would vote on the A-M field he stole from Cecil for consistency, since it doesn't make much sense for you to make your own A-M Field... The Reflect spell maybe, but not an A-M Field. Besides, Deamon is a physical powerhouse, so if were going with FF consistency, he would suck at any and all magic, so I vote Cecil's A-M Field.