Penance horn

The Penance horn can be obtained for free from Commander Connad at the Barbarian Assault Minigame. (You can receive this item for free and do not have use your Barbarian Assault points to receive it)The item gives double experience to Agility, Mining and Firemaking (burning logs). When receiving double experience from a skill task, your Penance Horn will lose some of its charge. 'Check-potential' your horn to see how much charge remains, and refill it by playing waves of Barbarian Assault. It can be upgraded to a Penance master horn, but you will need to be level 5 in any Barbarian Assault role. It gives no stats though. To charge horn, enter any wave waiting room, and rotate statue located in north part of the room. After rotating, the horn will gain charges instead of the points being given for playing a certain role in one wave.

Agility
The XP reward can be gained through completing agility courses excluding the Werewolf Skullball or the Agility Pyramid courses. A full Penance horn will last for approximately 350,000 experience whilst training agility at Ape Atoll Agility Course with 70 agility.

Firemaking
While lighting logs, you will recieve double XP.

Mining
While mining ores you will recieve double XP. When used with a Sacred clay pickaxe, you will receive 3x the xp from the ore. And neither will degrade any quicker. For example: if you mine an ore without the Sacred clay pickaxe, or the horn, you receive 35 XP. If you mine it with either the horn or the Sacred clay pickaxe, you receive 70XP, if you mine 1 iron ore wielding both the horn, and the Sacred clay pickaxe, then you will receive 105XP.

Horn messages
When checking the horn potential you can get the following messages to indicate how much you have left:
 * Your horn is more than three quarter's full.
 * Your horn is around three quarters full.
 * Your horn is less than three quarters full.
 * Your horn is around two thirds full.
 * Your horn is around half full.
 * Your horn is almost half full.
 * Your horn is around a third full.
 * Your horn is around a quarter full.
 * Your horn is less than a quarter full.
 * Your horn has only a little potential remaining.
 * Your horn is almost empty.
 * Your horn is empty.