If you're looking to accomplish this, you should remember to OSRS Gold do it with Magic because they're not immune to this particular style of combat. Use large eggs, rocks and columns to make Dragon stuck, and then complete them with your spells.
Also, you may kill Green Dragons north of the Graveyard in the Wilderness. Just bring the Anti-Dragon Shield, food and equipment. Don't bring anything precious so that you don't risk losing an account on Player Killers. It's also worth considering farming for Void Knight Equipment since you won't lose it dying in the low Wilderness. It's a fantastic piece of equipment to use for Dragon Killing and a safe one to use in this zone.
All bones that you collect must be sacrificed to the Chaos Altar, but it can be a risky method to take any other bones than those you want to sacrifice. This area is one of the most Player Active zones on Runescape, and it is located in the 38th level of Wilderness.
It is a sign that players from higher levels are able to challenge you. It would be wise to store the bones in the bank and do the Altar in the event that you have enough of the stored bones, but it's up to you whether or not you wish to take on the risk of putting your equipment in danger.
Another way to train is to train through the Slayer. In your Slayer assignments, you'll be able to RuneScape Gold 2007 gather a lot of Ensouled Monster Heads, which can be revived by the Dark Altar. Reanimated killed monsters will give large amounts of prayer experience however, it is not a reliable method than regular bone farming, and you cannot ensure that you will get enough Ensouled Heads to get between levels 1 and 99.