The Earth Warriors Slayer task presents several challenges that make it unappealing. If you have a decent level and gear, it can be a lucrative task as they do award decent XP. Due to certain requirements, some players may choose to skip it. If you want to do it, there are a few requirements that you need to keep in mind. You should not expect exceptional loot as they do not drop anything out of the ordinary. You can expect around 300 to 350 GB per kill in drops value.
You need level 15 agility to kill Earth warriors, to climb across some monkey bars.
Inventory
Melee gear with good defenses. You want to survive for as long as possible. Alternatively, you can go for a ranged setup, and in that case, great choices do not matter all that much.
One-click teleport away, in case some player attacks you
Super set. You will need them to bump up your stats to reduce the time you need to spend on this task.
Food. Make sure you get some food to manage your hit point.
Saradomin brew. This will prove to be useful when managing your health in critical situations. It also gives you more hit points temporarily in case of PKers.
Location
Earth Warriors can be found in the northeast of Edgeville Dungeon. The best way to get there is to use an Amulet of Glory which can be purchased at the Grand Exchange.
Another option is to get the Varrock Teleport, and from there, it is a short walk to the location. Once at the dungeon, you need to walk south until you find a trap door.
Once down, you have to go through an underground area. Head north until you reach a room and go through the door on the right.
Walk until you reach another room where you will see another door that will lead you to the wilderness. Once out in the wilderness, walk north and climb the monkey bars. You will find a small area in which you Earth Warriors spawn.
How to Kill Earth Warriors
Earth Warriors are weak to all types of damage. You can kill them with a melee or ranged setup. You should survive with decent gear and consumables without much effort as their max hit is 5.
Once your reach the area where they spawn, use your Super set and start attacking them one by one. They are easy to kill and are not aggressive, meaning you should not have difficulty killing them. As a ranged, there are a few spots in the area that you can safespot them.