The demon is in level 2 or 3 wild. Run through the gate [entrance to wild], go north, then go west past red spiders, when you see black demons, go into their lair, and run south. Poison spiders probably won't attack you. Just run behind the earth obelisk, then attack the demon. People will be able to attack you this way [since he won't actually be hitting you], but I made a reasonable amount of earth orbs there [before I could make air], and never got attacked, so I doubt anyone will. And you may as well just bring 5 air, water, and earth blasts, and as many fire blasts as you need to kill him. Also, you could bring an anti-pot just to be safe [spiders hit 6]. P.s. I am RELATIVELY sure that besides the beasts on Ape Atoll, monsters only poison you if they hit you in the first place [above 0, of course], so protect from melee, and you'll be fine.