[Blood Devouring] is a Special Talent that Ethan bought from the [Interface of the Evil Blood Dragon Spirit's Stats], whereas the [Endless Blood Furnace] is a Heavenly Talent that he bought from the [Interface of the Blood God's Stats].
Both talents have similar effects, which are to devour the blood or blood essence around them; however, the Heavenly Talent's effects were many times more powerful than the Special Talent's.
Unlike the Golden Core Demonic Cultivators, Ethan knew it was impossible to kill the Nascent Soul Demonic Cultivators with just the [Silent Feather Strike].
Even though the feather darts were quiet and blocking them was very hard, Ethan's cultivation was low, and thus, these darts were not powerful enough to kill the Nascent Soul Realm Cultivators.
