Penance aura

Penance is an aura available as part of the Members Loyalty Programme and can be purchased from Xuan in Burthorpe, for 23,000 loyalty points. This aura gains prayer points equal to 20% of any damage you receive.

It is activated for 1 hour and has a cooldown time of three hours. Also, as with all auras, if the account using it is logged out while the aura is activated, the timer will continue to run out.

The penance aura is often considered one of the more powerful auras when combined with the divine spirit shield. For instance, if you are to take a massive 1000 life points of damage, then the amount of damage actually taken is 700 life points, and the amount reduced is 300 life points. This will drain 150 prayer points. But after the damage is taken, you are restored 20% of the 700 damage taken (assuming that the aura calculates the prayer restoration AFTER soaked damage), which results in 140 prayer being restored. Thus, the actual net loss is only 10 prayer points.

The penance aura, in theory, can result in infinitely sustained prayer when combined with soul split. If you can both take a consistent amount of damage to sustain soul split indefinitely and output enough damage, you can effectively sustain yourself at a combat area indefinitely. The conditions need to be very consistent and perfect for this to sustain for elongated periods of time. If you take too little damage then you will not maintain enough prayer to keep soul split up, but if the monsters deal too much damage, you cannot heal fast enough.

Penance aura is also considered one of the best PvP auras, since it will nearly negate the effects of smite and completely negates the effects of soul split prayer draining. It has been confirmed that this aura does work in pvp situations. But since smite will drain 25% of your prayer based on the damage you take and you gain 20%, it is very useful for maintaining prayer points during a fight.

Trivia

 * The icon found on the Penance aura resembles the superboss of the same name from Final Fantasy X, a popular fantasy video game.