The ring of vigour is an item that can be obtained using 50,000 Dungeoneering tokens from the rewards trader in Daemonheim. It also requires an Attack level of 62 to purchase. When the ring of vigour is worn, after an ultimate ability is used, the user will continue combat from 10% adrenaline instead of 0%.
Template:Beta content
The Ring of vigour does not give back adrenaline after using a special attack. It still only gives 10% adrenaline after using an ultimate ability.
Trivia
When first released the Game Guide stated that it cost 32,000 tokens and that it only works with melee attacks. However, this was a mistake.
This item was sometimes used by rushers in the Wilderness with dragon claws and/or Korasi's sword. This allowed a rusher to get either 3 series of very quick attacks or 2 magical attacks that were very likely to get a kill if the target was not using protection prayers or paying attention. This is no longer possible after the release of the Evolution of Combat.
It seems that the Ring of vigour protects over items worth less than 5 million gp.