Purely because his control over the Undead Slaughter Divine Power was indirect, able to utilize only a part of its abilities.
Now that the Hands of Slaughter had completely reshaped the body with the Undead Slaughter Divinity, ascending to a Subdivine Power Demon Lord, its strength was fully unleashed, plundering it for personal use was a matter of moments.
At the same time, the Nether Slaughter Chain Mace appeared in the other hand, clanking and clattering, gathering countless divine powers on it, waiting for the bright red glow to dissipate.
The Nether Slaughter Chain Mace transformed from single-headed to double-headed, the other head resembling a Vampire's head, looking seventy to eighty percent similar to the Incarnation of Baron Blood, with clearly discernible blood-sucking fangs, and the chain connected to it was also a blood-red color.
There's no question, the ability of this newly born chain mace head is surely related to bloodsucking.
