Heart Heavenly Devil Emperor had fused not only the original Heart Heavenly Devil Emperor, Dark Heavenly Devil Emperor, and Heaven Swallowing Devil Emperor, but also a great number of Heart Devil Clan members.
However, he did not possess Amon's trait where the combined wills of all his avatars equaled the will of his Main Body, so maintaining his own balance was far more difficult.
That was also why he had fused only his own clansmen instead of recklessly assimilating other Outer Evil Clans.
The Heart Devil Clan was a particularly unique race among the Outer Evil Clans. Every member shared a faint mental connection with the others. Merging into Heart Heavenly Devil Emperor and becoming part of him was, in a sense, merely an intensification of that mental connection.
To a certain extent, these clansmen's wills would obey Heart Heavenly Devil Emperor's will, which had a positive effect on the stability of his mind.
They could help him suppress the wills of Dark Heavenly Devil Emperor and Heaven Swallowing Devil Emperor, allowing him to retain his sense of self. When necessary, he could also split them off and turn them into weaker avatars.
Heart Heavenly Devil Emperor had been able to wreak havoc throughout the Great Thousand World because he commanded a massive army of Outer Evil Clans!
Otherwise, relying solely on himself and his puppets, disrupting Martial Border and Sword Domain would already have been his limit. He simply could not hold back so many forces at once.
Yet the abilities Amon displayed had far exceeded their imaginations... By himself, he had contended against nearly half the power of the entire Outer Evil Clan!
In a lower plane, the entire world was shrouded in dense Demonic Qi. Immortal mountains and sacred lands that had once gathered the purification of