From Guild Wars 2 Wiki
Adrenal Mushrooms reset the cooldown of your skills once you walk over or interact with them. They are found in Heart of Maguuma.
- Adrenal Mushrooms mastery is required to use these mushrooms.
- A mushroom will be available to be used again after a cooldown of 30 seconds.
- Activating a mushroom reduces cooldown of all skills by 1200 seconds.
- Most profession-specific resources are affected: