This is the seal of Sabnock from Goetia.

Demon Sabnock: Goetia

The Forty third Spirit is called Sabnock. He is a Marquis, and he appears in the form of an armed soldier with a lion’s head, riding on a pale-coloured horse.

He builds high towers, castles and cities, and furnishes them with weapons.

Sabnock afflicts people for many days with wounds and with sores rotten and full of worms. He gives good Familiars and commands 50 Legions of Spirits.

Source: Goetia

Goetia: Sabnock & Malphas

I do spells with the demon Sabnock almost each Monday, and this demon is a gentleman and a bodyguard. Sabnock wanted me to have a logotype with his sigil in exchange for his patronage. I agreed.

Not so many people call upon Sabnock as their bodyguard and allie, and that is why not much is known about this demon.

Besides being a demon of war who is capable of causing severe illness in intruders of the Witch’s abodes and astral space, this demon is capable of healing mild depressions too.

As you work with Sabnock very often and ask him to protect you from magickal attacks, he will force you to chop off some connections with people (who are connected to violent people).

If it hurts, Sabnock will support you and heal your mild depression. Just ask him to lift up the sorrow, and you will be a cheerful person right the next day (keep his seal near your bed always).

And if somebody is manipulating you with magick, Sabnock will inform you and direct you to his friend Malphas. The latter will help you to know all about the plans of those who impose their will upon you with the aid of magick.