How strong is the cold iron blade on the exile road?

Every aspect of The Road to Exile has a strong cold iron blade:

With the blessing of level 33 vulnerabilities, the total physical damage suffered by the enemy is increased by 45%+20% for 4S, and the output of BB is greatly improved. At the same time, with the blessing of spike stick and 32-level terror flag, the puncture probability is reduced by 60% +30%, which further improves the output of BB. And reduce the hit rate of the surrounding enemies by 25% and improve the survival rate of the characters. If you are quick, you can also insert a flag when playing BOSS to get protection. These two auras are the core of this BD core, which greatly improves BB output and character survival, and also has the effect of increasing damage and slowing down spiders.