At E2, Ruan Mei remains a valuable asset with a permanent ATK bonus for allies when attacking Weakness Broken enemies. This is generally useful if the main DPS character scales with ATK and focuses on reducing the toughness of the enemy. However, it's worth noting that while characters like Firefly benefit from ATK scaling (and convert ATK to Break Effect), her kit revolves around Super Break, which doesn't typically scale from Crit or ATK values. Even so, the ATK bonus indirectly helps in such ...