Chaotic staff

The chaotic staff is a Magic weapon released with the Dungeoneering skill on 12 April 2010. The staff requires a Magic level of 80 and a Dungeoneering level of 80 to wield. At least two million Dungeoneering experience is required to attain the 200,000 tokens needed to purchase this item. It gives a +20% damage boost, and is currently the strongest staff in game.

After approximately 10 hours of combat, the chaotic staff will degrade completely and must be recharged before it may be used again; it has a 20% charge on purchase. Once these charges have been used up, the weapon can be recharged for a fee by the rewards trader. To do so, right-click on him and select "Recharge" with the depleted weapon in your inventory. There are two methods of recharging: cash or a combination of cash and dungeoneering tokens.

The Magic damage of this staff is currently the highest in game, and the fact that it doesn't require any attack level to wear makes it perfect for Magic pures or mages without the required attack level, even though it doesn't reduce the need of runes like the staff of light.

It has very high melee attacks too, with the same crush stats as a dragon battleaxe.

Repair costs
The weapon initially comes with a 20% charge. Repair costs come in 1% increments.
 * 100% charged (Fully charged) – no cost.
 * 99% charged – 20,000 coins or 2,000 coins and 200 tokens.
 * 90% charged – 200,000 coins or 20,000 coins and 2,000 tokens.
 * 0% charged (No charge) – 2,000,000 coins or 200,000 coins and 20,000 tokens.

Trivia

 * The chaotic staff almost has the same appearance as the celestial catalytic staff, the chaotic staff is just a bit fainter.
 * The original price for this reward used to be 400k tokens before it was changed in the 21 April 2010 update.