<Devour > is a heaven-defying ability that enables Ye Xiao to devour almost everything that exists.
When Ye Xiao started his journey of cultivation in the Source Universe (Heavens), this was the first ability he obtained. With the help of this ability, Ye Xiao's cultivation rose quickly and very soon, he become so strong that no one could touch his feet even if they try for their lifetime.
Ye Xiao could devour the cultivation bases of a Chaos Beast, a human, or any other creature using his Devouring Ability.
But he did not do such a thing after his rebirth in Chaos.
There was no specific reason, he just did not do so.
But now, Ye Xiao was thinking of something else.
He first observed and felt the strength surging in every pore of his body.