The avatar of Vandal King is void of a physical body and is entirely made of his ethereal spirit that is neither detectable by any means nor harmed under any conventional sense. The spirit itself is the membrane of Brimstone Dimension itself, with the dimension being the very core of Vandal Kings mighty spirit, and as such, while the spirit may not possess any physical body, it comes with all the capabilities of Vandal King as that is the true source of all his abilities.

Upon discarding his body, Vandal King escapes the predicament of being a demon. Despite his core (the Brimstone Dimension) being made entirely of the energy of the 9 Demonic Avatars, the Holy Ghost doesn't carry any demonic essence with it. The Holy Ghost is Vandal's true God Nature as the son of Shaman King. All the powers of the 9 demon lords filter through the core, through the membranes of his spirit, purify the energy into god chi before being allowed outside. Thus, what anyone is able to sense is not demonic, but the extreme pure nature that belongs to a God.

Holy Ghost is formless, capable of taking the form of anything, his reaches are indefinite, his will surplus. The filters enable his demonic psyche to transform into a mass of willpower capable of affecting all beings in general. The Holy Ghost thus appeals to the hearts and minds of others through strands of his own will, will deprived of hints of malice. The Holy Ghost rides on the concept of thinking.

Powers

Reality Warping:

As an extension of Vandal King, the Holy Ghost is capable of much of the same thing as Vandal King himself, which includes his ability to warp reality. The ability is more profound as the Holy Ghost as where his will touches, the reality is up for grabs, as Vandal King within a mortal body rarely sends his will out to cover the world, which as the Holy Ghost, his will is nigh omnipresent across the world.

Omnipresence:

The Avatar of Vandal King can be anywhere that isn't privy to his will, and be everywhere at once. (lowkey constricted to the planet Earth only and when within the Brimstone Dimension, the entirety of it rests within his consciousness.

Commune / Possession:

The Avatar of Vandal King chooses a handful of followers to spread his message of freedom and peace. These 'Prophets' or 'Messengers' often display the power to bend reality and create 'Miracles'. Vandal uses them to spread his message among the masses.