Aggro (unofficial name) is a character-only stat in Honkai: Star Rail. It determines a character’s probability of being targeted by enemies. Aggro = Base Aggro × ( 1 + Aggro Modifier ) {\displaystyle \text{Aggro} = \text{Base Aggro} \times (1 + \text{Aggro Modifier})} Probability of Being Targeted = Aggro Character ∑ Aggro Team {\displaystyle \text{Probability of Being Targeted} = \frac{\text{Aggro}_\text{Character}}{\sum\text{Aggro}_\text{Team}}} Characters’ Base Aggro is determined by their pa