Su Yu looked down to examine the Tiger Sinew Pill in his palm. It was about the size of a longan, with a heavy, dark-golden hue. Upon closer inspection, mystical, dark-red pill veins resembling tiger stripes faintly flowed across its surface. If he brought it close to his ear, he could even hear the faint, subtle roar of clashing metal from within.
The refinement process for the Tiger Sinew Pill is notoriously harsh and cruel.
Its primary ingredient is the great spinal tendon of an Exotic Beast, supplemented by eighteen other rare herbs, including ten-year-old Earth Bone Dragon Root, Dragon Blood Purple Leaf Grass, and Marrow Jade Milk. Only after an Alchemy Master spends dozens of days in continuous refinement can the Evil Qi be stripped from the beast's Great Tendon, extracting the incomparably pure Supreme Yang Marrow.
