Earth orbs are used to make earth battlestaves; this gives very fast Crafting XP, so the orbs are always in high demand. They are made by taking them to the earth obelisk located in low level Wilderness; it is accessed by running all the way through the Edgeville Dungeon. The spell requires level 60 Magic and uses 3 cosmic runes and 30 earth runes per orb (the earth staff negates the need for the earth runes, however.)
Earth orbs are the most annoying of the four types to charge, because of the location of the earth obelisk. It is in shallow Wilderness, like the air obelisk, but it is in a spot where it is difficult to avoid attacks by poison spiders and the quest monster Chronozon (a large demon). You can hide from these monsters but when you try to access your beast of burden they may be able to attack you, and you may waste some time avoiding them. This is why this method yields fewer orbs on average than doing water, fire or air orbs, which may be more profitable, depending on current GE prices.
Note that there is no advantage to level 90 skills over level 70 skills here, but at level 96 Summoning you can use a pack yak, which lets you make more orbs per hour.
Finally, remember that even though it takes a long time to do the charging, during which you could effectively multitask, you are in the Wilderness so it is wise to pay attention to what you're doing! |
All information based on Grand Exchange price data from: May 19, 2012. Note that the three-day delay in price updates is waived for RuneScoop members. 