After all, it's a battle against a master using the Power of Death, so Ye Tian initially used the Power of Life.
Because the Power of Life counters the Power of Death, using the Power of Life allows him to fight more easily...
This is also the wish of the millennium ancient tree's Shu Xin, who hates the Power of Death representing death the most!
In the battle with Tian Er, Ye Tian relied on the Power of Life to win!
But this time, the situation is slightly different. Ye Tian's opponent, Tian Yi, is vastly different in strength compared to Tian Er, so Ye Tian simply cannot rely solely on the Power of Life to win!
This can be seen in the clash between the wooden sword and the Qiankun Ring, where the difference in Power of Life between Ye Tian and Tian Yi caused the wooden sword to be defeated in the clash!
Thus, Ye Tian could only change his tactics!