The Nightmare Zone now has a way to get 60-80K Attack/Strength Experience per hour and you make money from it.
As long as its High prayer bonus its good.
You can last a good 1-2 Hours per dream.
How to Start
You will need these 6 Quests done.
Tree Gnome Village
The Grand Tree
Go to the Yanille bank and right North of it will be the Nightmare Zone.
Hop to world 330 and there will be low levels selling Melee only dreams for around 20-40k
Make sure that they have ONLY these 5-6 Bosses
They will Invite you to their party so DO NOT start your own up.
Once in the dream these Power Ups will spawn which will increase your Points P/H.
Power Ups to Use
Recurrent Damage - If you hit a 30 the power up will make it so you hit a 22 as well.
Power Surge - You get unlimited special attack
Zapper- The NPC's around the Zapper will get hit with constant 7s
The Rewards For Cash
I currently have 800K points. Pure Essence is 70 Points each. (As of September 28th)
800,000 / 70 = 11,428
11,428 X 65 = 742K
If you spend 180K-200K for Prayer Potions per Inventory and you get 400K points which you should as the MINIMUM you have already made your money back and have made profit from complete safe, AFK training
You can also imbue your Berserker, Seers, and Archers ring for 650K points.
If you have anymore questions, this video explains everything pretty well.