Burying or offering bones is extremely expensive. Therefore, you should be using bones that offer the best experience for the value. Also, it’s highly recommended to offer bones at a gilded altar to get the best value per bone. The best bones to offer are: Big Bones: Experience: 52.5 GP Cost Per XP: -2.3 Wyvern Bones: Experience: 252 GP Cost Per XP: -6.5 Dragon Bones: Experience: 252 GP Cost Per XP: -6.6 Lava Dragon Bones: Experience: 297.5 GP Cost Per XP: -10 Dagannoth Bones: Experience: 437.5 GP Cost Per XP: -15 Superior Dragon Bones: Experience: 525 GP Cost Per XP: -16