I believe that many players are still not clear about this, so today I will let the editor of Source Code Network bring you how to play the devil's muscles with endless malice. I hope it will be helpful to everyone!
16 Faith, 16 Intelligence
Piercing Whirling, Piercing Flurry, Guidance, Life Pulse
The rapier possesses such surgical precision that, according to its wielders, one can even feel it pulling itself towards the heart of their enemies.
It is dropped by the double-headed boss in the main line, and there is a chance to get it by opening the treasure chest after defeating the trial boss Echo Knight.