Biorhythm

When you or your pet unleash, gain biorhythm every interval for a duration. When you reach the biorhythm stack threshold, the next time you or your pet unleash, gain both bonuses from Vow of the Untamed. — In-game description

Biorhythm

Specialization

Untamed (trait list)

Tier

Grandmaster

Type

Major

Training cost

10 Hero points

Game link

API

API

“

10

Biorhythm

When you or your pet unleash, gain biorhythm every interval for a duration. When you reach the biorhythm stack threshold, the next time you or your pet unleash, gain both bonuses from Vow of the Untamed.

 Biorhythm (6s): +2% Healing from Outgoing Attack Damage

 Vow of the Untamed (10s): Your outgoing strike damage is increased, and your incoming strike damage is reduced.

 Duration: 4 seconds

Biorhythm Stack Threshold: 5

 Interval: 1 second

— In-game description

Mechanics

• After unleashing, removes all existing Biorhythm stacks and applies one stack, then applies one stack per second up to 5 stacks.
• Stacks then decay by 1 per second after reaching 5, as Biorhythm stacks do not refresh the duration of each-other.
• Unleashing any time after reaching 5 Biorhythm stacks will grant  Vow of the Untamed, allowing for permanent uptime if unleashing in intervals between 5 to 10 seconds.

Version history

For a detailed trait history, see here.

Patch	Changes
April 14, 2026	Guild Wars 2 Wiki note: The icon for this trait has now been updated, as previously noted but not conducted under Game updates/2026-03-17.
June 24, 2025	This trait has been reworked and is now named Biorhythm. When you or your pet unleash, gain a stack of Biorhythm every interval for a duration, granting a percentage of strike damage as healing. When you reach the Biorhythm stack threshold, the next time you or your pet unleash, gain both bonuses from Vow of the Untamed.
June 27, 2023	This trait no longer passively converts strike damage to healing, and it instead converts strike damage to healing when you or your pet unleash. Increased protection duration from 2 seconds to 3 seconds.
November 29, 2022	This trait now also grants protection when you or your pet unleash.
March 15, 2022	Percentage of damage dealt converted to healing reduced from 10% to 5% in PvE only.
February 28, 2022	End of Dragons release: Restorative Strikes has been added to the game. (Undocumented) This trait is no longer split between game modes and will now use the higher 10% healing in all modes.
November 30, 2021	Restorative Strikes was available during the End of Dragons Beta Event 4.
October 26, 2021	Restorative Strikes was available during the End of Dragons Beta Event 3.