Rush

Rush is an armor buff that restores health when inflicting a critical strike.

Armor with this buff:
 * Beastmaster Horned Helm
 * Centurion Crested Helm
 * Peerless Sharpshooter Cap
 * Imperishable Helm
 * Avenger Breastplate
 * Breastplate of Retribution
 * Ring of Harrold's Revenge