This is Lucas's Daimon Form in the Regalia of the Black Goat on and this was a commission done by https://www.furaffinity.net/user/wolfarter/ a friend of mine.

Lucas usually wears the Regalia of the Black Goat when he turns into his daimon form and it reverts into three bracelets on his left arm whenever he turns back into his normal form. This armor not only provides protection against physical attacks but also magical attacks as well. It also acts as an Arcane Focus for his magic. The armor has the ability to manipulate its shape and he usually turns it into a set of three bracelets when not in use. The armor also grants him the ability to create portals and he is only able to produce two portals at a time. He could only create these portals within his line of sight. These portals can cover a vast distance of 15 miles and if it exceeds this distance the portals will dissipate. The size of the portals can range from 8 ft to 30 ft in circumference. The armor also has access to a pocket Dimension similar to that of a bag of holding. Where he could store pretty much anything as there isn't a size restriction. Lucas can utilize the portal manipulation and access the pocket dimension Outside of his daimon form.