Prayer

Prayer is a combat skill that may grant he or she a buff in combat. All players start with limited access to the Prayer skill. As a player advances their Prayer level, they gain access to new prayers. It allows players to pray for assistance in combat, such as, stat boosts and immunity from attacks. Effects last until the player runs out of prayer points, or a player turns their prayers off. Can also be used to repair or bless Gravestones. With a higher level a player can also wear Spirit Shields, including the Blessed variations.

How to train Prayer
You can train prayer in a number of fashions. The most popular being usage on the gilded altar. This method gives you 350% increased xp from standard burying xp. Another is the ectofunctus which is very unused as it's terribly slow, but it increases xp by 450%.

A new method recently introduced was by the usage of the level 33 chaos altar in the wilderness. It can save a bone at a 50% chance. Using this altar is just slightly better then using a gilded altar with its base xp rate. Saving a bone is basically doubling how much xp you get per bone.