Void Demon Spirits were humanoid Demons that resembled specters. Draped in purple robes, their translucent forms contained an incredibly bizarre Void Magic Power. Existing in a state between illusion and reality, they were immune to physical attacks. Only energy-based attacks could harm them.
At least, that was how it was supposed to be.
But after being enhanced by the Void Witch's Divine Power, these Void Demon Spirits gained extremely high resistance to energy attacks as well. One-on-one, an ordinary Tier Three practitioner was no match for them at all.
However, this wasn't Isaac's true countermeasure. After all, the Black Knight was Tier Four.
And a Tier Four who specialized in fighting Deities, at that.
Sure enough, the Void Demon Spirits, which were so troublesome for Tier Three practitioners, were crushed by the Black Knight in a single clash.
