First of all, I have to say that this topic will only help you out if you are a member, have either 60 strength or agility, have a decent ranged level (I would suggest 65+), a decent prayer level (50+) and at least a little bit of money to throw around to begin with. Honestly, it's really worth it, costs about 50-100k per load, and can easily sell drops for 4-500k per load, so at the minimum about 300k profit per load, which takes me about 1-3 hrs.
First of all, Items Required:
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[*]Rope (first time only)
[*]Monk's Robes
[*]Ranged Weapon (I use rune c'bow)
[*]Ammunition of your choice (I use Emerald Bolts (E) because they poison)
[*]Prayer Potions (I suggest ten 4 dose)
[*]Ranged Potions (Not needed, makes training faster, I suggest 2-3 4 dose)
[*]Law Runes (2, for teleporting to Trollheim, Aviansies drop runes to get back)
[*]Fire Runes (252, 250 for alchemy spell, 2 for the teleport)
[*]Nature Runes (50, for alching drops from the aviansies)
[*]Super Restore Potion (When you enter, your stats will be lowered)
[*]God Items, explained below
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Ok, so now I am assuming you have all of the above items, except maybe the 'god' items. I'll go ahead and explain them now.
In the God Wars Dungeon, where the Aviansies are located, there are four different factions of monsters, Zamorak, Saradomin, Bandos, and Armadyl. These different factions WILL attack you, unless you are wearing an item representing their god. Personally, i wear a Zamorak coif, Saradomin bracers, and an Armadyl pendant (Obtained from Temple of Ikov quest). The pendant is not as important as the others, as the only Armadyl monsters are the Aviansies, and you want them to attack you. Any prayer book is helpful, as you will need the prayer bonus and when it is for Zamorak or Saradomin, it will count as your god item.
Getting to the God Wars Dungeon:
I recommend teleporting to trollheim, then running past the thrower trolls into the short path that goes north. From there, you can either move the boulder to the north with 60 strength, or squeeze through a crack with 60 agility. Once inside, run south a bit until you start seeing some flying bird-like creatures.
Once you find a few Aviansies, take a sip of your ranging potion, flip on the protect from missiles prayer, and start to attack one. You will notice that some green vines come out of the ground under your opponent if you are using the emerald (e) bolts. This signifies that they are poisoned. The poison will do up to 5 damage at a time. Once you have an aviansie down to about half hits and they are poisoned, pick another one and start attacking it. Keep an eye out for the drops, they drop 4 noted addy bars very common, as well as rune dagger (p+) rune c'bow limbs, herbs, and lots of runes (You will need some of these runes to teleport back, and they sell well)
Continue fighting the aviansies, using your prayer and ranged potions as necessary, and avoiding the other various monsters meandering around the caves. They aren't agressive, but if you accidentally attack one, they will fight back. Just kill it quickly or run away for a bit and return.