There's a 50% chance to spare the RS gold bone on the sacrifice which still provides experience whilst also giving your bone back. This makes bones in Gilded Altar incredibly cost-effective but in addition, it includes fantastic risk. Altar is determined by level 38 Wilderness where gamers are easily killed by other players. Likewise to Gilded altar, there is NPC who can unnote bones for you for just a bit of stone. If you want to train using these process follow these measures:

Gear up and take as many noted bones as you want. Bear in mind that its high Wilderness and you are extremely prone to become PK target so don't get too many bones and too precious equipment. Go to the Chaos Temple situated west of Lava Maze. Talk to NPC Beyond the OSRS buy gold hut to unnote bones. Sacrifice bones in the Altar. Go back to NPC into unnote more.Repeat the procedure.