History of Adrenal Rush

Adrenal Rush is the 2-piece bonus of the Cyberserpent Null armor set (see Cyberserpent Null Mask), earned from Gambit. It improves reload speed and handling for a short time after sprinting, and final blows extend it.

The set's 4-piece bonus, Bountiful Munitions, was disabled in the Crucible over an exploit that let players spawn infinite Special ammo while Adrenal Rush was active. It no longer works in any Crucible playlist, including Iron Banner, but it still works in PvE. The set still provides the Adrenal Rush effect.