Demons (in my belief) can be killed. I was told in church that a demon is a evil soul that over thousands of years was manipulated into a demon. If you can find the bones of the demon from it's past life and then burn them you could be able to kill them. But that is vary hard and basically impossible since the only thing that knows who the demon was before is itself, other demons, and Satan himself.
Another answer:
Most Christians believe demons are spiritual beings that have no bodies. Since they have no bodies, they cannot be killed.
Humans can't kill a demon
erm your supposed to kill Elvarg which is lvl 80+, close to a lesser demon which is also about the same level In melzars maze you have to kill a lesser demon to open a door for a map piece.
The Sword you used to kill the demon with, the sword is good against demons.
by magic
he is fictional doll with red hair, but not a demon. charles,l, ray, do some voodo before he dies, and turns into a doll, and he contine to kill, and kill, and kill.
Serena i have herd is a dream demon and tries to kill in your sleep. Contact with this demon is very rare and should try and contact a priest or wiccan to help banish this demon .
you need at least a mithril armour to prevent dark wizards to attack you. With silverlight , you can kill it by 1 shot. (silverlight is weakness to any demon , including the demon you have to kill in mezler maze when you do dragon slayer.)
I think Inuyasha should stay a half demon because if he's a full demon he might lose control of himself and kill his friends.
meleethem
3, there are safe spots there...
if the kyuubi was a card
It depends on the individual strengths and weaknesses of the monster and the demon. In some cases, a monster may possess abilities or powers that could allow it to defeat a demon, while in other situations, a demon's magical abilities or resilience may make it more powerful than a monster. Ultimately, the outcome would be determined by the specific characteristics of each creature involved.