Each hit with a Raven weapon has a chance to stack 1 } Raven buff on the attacker. The buff lasts 30 sec. and gives a chance to hit for 1200% ~ 1800% Additional Damage. Each new } Raven stack adds Attack Power and refreshes the buff duration. At 5 stacks, the buff is converted into a new 10 sec. } Raven buff that cannot be stacked. This new buff maintains the 5-stack Additional Damage and Attack Power bonuses, as well as +100% Critical Rate and 10% Focus Recovery on Critical Hit. All cooldowns are reset when the buff expires.