C2709 Soul Dao Technique(part I)

Lin Hao's heart began to itch. According to what the Greyhound said just now... This Soul Summoning Formation was a powerful Formation that had been passed down from ancient times to help the cultivation grow in strength. It also absorbed the energy of countless strangers. The Heavenly Soul Crystal that it used could even be touched by an ordinary cultivator. In this way... In other words