History of Iaido

Iaido is the two-piece set bonus of the Bushido armor set. It heals you when you land a final blow with a freshly drawn or reloaded weapon. Repeated triggers are limited by a cooldown, so hotswapping does not chain the heal. Bushido is tied to Pinnacle Ops activities, though guides differ on the exact acquisition route.

The four-piece bonus is Unfaltering Focus.