Zhu Wu sat cross-legged to regulate his breathing, bringing his condition to its peak.
"Ergou-xiong uses twin sabers, so it's best to forge them together. With artifact spirits, they'll be like twins, and their power should be even greater. The auxiliary materials should be heavy-focused: Primordial Iron Essence... Meteoric Iron... Millennium Dark Iron..." Zhu Wu rummaged through all the ores and picked out the ones he needed.
Among the three Heaven Tier ores, one was Myriad-Year Cold Ice Stone, and two were Star Crystal Stones.
Chapter 59