|1,970,000 per hour|
The profit rate assumes 520 kills per hour. Your actual profit may be higher or lower depending on your speed.
After completing Forgiveness of a Chaos Dwarf you can access the Chaos Dwarf Battlefield, filled with dwarves that drop the dragon pickaxe. As most of the monsters use Ranged attacks, it's best to use melee armour and weapons, which are strong to that style.
The dwarves and cannoneers are not very powerful, and they only have 1000 and 2500 life points, respectively. Using a two-handed weapon is recommended, as the initial auto-attack will be higher and the two-handed abilities are better suited to multicombat. They get killed very quickly, so it's almost unnecessary to use threshold and ultimate abilities. However, you will want to use multicombat abilities like Hurricane, Cleave and Quake, as the dwarves will crowd you and you can hit many of them at once. Try to avoid the chaos dwogres, as they will slow you down.
Try to hit the dwarfs as fast as you can; the nearby Black Guard crossbowdwarfs left alive will easily decimate the chaos dwarves almost immediately. Due to attacking a chaos dwarf, nearby chaos dwarfs will start to attack you. Although they do not hit very accurately, the damage will quickly stack up. To avoid this, you should have prayer restoring neck-wear like the demon horn necklace, a bonecrusher, and Soul Split to recover from your battle wounds. If you do not, you may want to use protection prayers, and occasionally use Ice Asylum, Rejuvenate, or Guthix's Blessing.
With high stats and prayers, and effectively using multicombat abilities, you should be able to kill about 520 monsters per hour.
It's very rare that the dwarves will drop anything worth picking up -- the dragon pickaxe has a drop chance of 1/5,000, so in the very long run you should get about one pickaxe per eight hours if you kill them in equal amounts. They also drop hand cannon shot, 100 at a time, which is also worth picking up. Other than that, both monsters give access to the rare drop table so it is worth wearing a ring of wealth, even though it does not increase the chances of receiving a dragon pickaxe. Using a charming imp to pick up the charms they drop can give you about 100 gold, 40 green, 25 crimson and 20 blue charms per hour. The great majority of the profit from this method comes from a rare drop that may take a very long time to get.
It is strongly recommended to check the live prices on the Grand Exchange before making large investments in any method.
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