Some enemies in Honkai: Star Rail will reportedly have multiple layers of Toughness, as stated by a prominent leaker. Honkai: Star Rail has a combat mechanic that requires players to deplete the enemy's Toughness bar, which is displayed above its HP bar, to trigger the Break Effect. When this bar is fully exhausted, the enemy enters the Broken state, and players can utilize its elemental weakness to deliver a massive amount of damage.