History of Critical Health

Critical Health (also written critical HP) is the low-health state that some armor set bonuses react to. The four-piece Reactive Booster bonus of the Aion Renewal Kepler armor set grants Speed Booster for a short duration when a Guardian sprints at critical health. It works once per activation of Force Converter, the two-piece bonus that is triggered by a final blow with a rocket launcher, grenade launcher or micro-missile weapon. Reactive Booster also triggers when the Guardian is suspended by Strand or slowed by Stasis.

No source defines the health threshold for critical health, and the bonus wording may change between armor sets.