Phantom Lord's Headquarters, as the name implies, was the main base of the former Phantom Lord Guild.
Phantom Lord's headquarters was a large, imposing and compact building composed of stone, taking on the architectonic form of a single body ending in a variety of differently shaped domes. The entrance was topped by an extremely high, ornamental part, consisting of an arc held up by two long, square pillars, complete with some arched windows below it, and placed above the smaller arc of the door itself; such zone was intricately decorated with bas-reliefs. To the entrance's right was an angled zone with several orders of large arched windows lined up one at the other's side, with the orders being six, and the top sporting battlements. The part to the left was instead reminiscent of an hexagonal tower fused with the building, possessing very high and ornamental windows in groups of three in its lower part, with bas-reliefs below them, and simpler, smaller and more numerous arched windows in its upper part. Each of the tower's angles was marked by a long, round pillar, possessing bulges in correspondence to the various architectonic orders of the building, and going up to the structure's top, where it ended in three bulges topped by an elongated part; the top itself consisted of a large dome, bearing on its top an elongated protrusion similar to those on the columns. Behind such dome, in the central part of the building's top, stood one more dome, smaller, more slender and topped by a light flag with the guild's symbol on it; this dome had one more structure on its right, with the bulge it ended in being reminiscent of a flat, round platform. The headquarters' most distinctive feature was probably the pair of towers adorning its sides on the front: these were extremely high, and consisted of many floors which seemed to be separated from one another, as if they had first been built individually and then piled up one on the other. Eight floors were visible for each tower; the first seven from the ground were adorned by large, elongated windows protruding outwards, while the eighth floors, which ended in pointed tiled roofs, housed doors, opening in the air. The eighth floor of the right tower was known as the Sky Prison, and was where Jose Porla held captive a tied up Lucy Heartfilia; it's unknown through which means such cell could be reached from the building below. Two more, identical towers were visible on the rear part of the building.
The building sat in an open area consisting of fields, and some mildly prominent hills were visible quite away from its back side. The headquarters was shown to be surrounded by a fair amount of ruins, with a partially destroyed circle of walls surrounding it, complete with a majestic, open gate giving access to it, and several, collapsed square pillars adorning the area around it. Some small bushes sprouted here and there, and the place seemed to be a pasture, with a cow being shown standing near a fence among broken pillars. This idyllic landscape was drastically changed in the anime, where, aside from the building having received subtle changes, with its spherical dome now being in the center, the place it sat on was turned into a desolate, rocky area, with large projections of rocks sprouting diagonally from the ground and pointing upwards.
On the inside, most of the building appears to be quite bare, with the majority of the seen rooms being almost empty, sporting only mechanical devices in minor or major amounts to adorn them, these being used to accomplish the various, bizarre functions the building provides. Most corridors seem to be built on this design, being almost disadorned, aside from some basic square pillars on their walls and square motifs on their lower parts, and sporting gratings on the floor; they also possessed simple coffered ceilings.
The headquarters, however, wasn't completely unadorned, as shown from a long and imposing hall where Elfman fought the Element 4 member Sol, which had its sides adorned by a majestic colonnade, composed of large, square pillars, bearing bas-reliefs of angelic figures on large, blank squares on its top, above the arcs it created; the corridor also sported a number of large, rectangular and protruding flower beds packed full of light flowers, located in the central part of the stone floor. Decorative elements were also present in the room which acted as Master Jose Porla's control station once the headquarters had been turned into the Super Mage Giant Phantom MK II; this, much like the rest of the building, contained several machinery, but also sported a protruding, decorative pattern consisting of alternated pyramids, both pointing upwards and capsized, with large circles in their centers, on the middle parts of the walls. The door leading to such room was also quite elaborated, sporting a carved metal frame, with curved motifs in the lower part, as well as Phantom Lord's emblem in its center, inside a square.
Magic and Abilities
Seemingly a masterpiece of engineering, Phantom Lord's headquarters was a bizarre structure which came equipped with a variety of mechanical, battle-oriented features, making it a formidable asset during the Guild War which Phantom Lord started against the rival Fairy Tail.
The building was shown capable of literally moving through the use of six, gargantuan mechanical legs, similar to those of a spider, which were shown attached to its sides during Phantom Lord's raid on Fairy Tail's building, following the liberation of Lucy Heartfilia from Phantom Lord at Natsu Dragneel's hands. Such legs were connected to the building by large, flat round parts bearing the guild's symbol on them, which seemed to appear from rectangular holes on the walls, and bore other, more bulging, bolted round parts in correspondence to the legs' "joints", from which a number of pipes jutted outwards, letting out large amounts of steam or smoke from them. Each leg ended in a part consisting of four flat protrusions jutting outwards, granting it more stability when moving and standing still. Due to their great length, the legs allowed the guild to literally cross large bodies of water while remaining suspended several meters above them; in addition, as evident of their gigantic size, they could reduce solid stone into rubble simply by stomping on it.
The headquarters was equipped with the Magical Convergent Cannon: Jupiter, a mighty weapon firing compressed Magic Power. This was located in the upper part of the decorative arc topping the guild's entrance, appearing from that as a mildly small, odd round cannon with a metal frame, which would subsequently be extended frontwards several meters, being revealed as just the ending part of the massive, square and elongated barrel sprouting from behind it.
Once a sufficient amount of Magic Power had been gathered before it, Jupiter would be fired, usually on Master Jose's order, sending a large, bright beam at its target, which could cause severe damage, wreaking havoc on a building and easily breaking through a defense strong as Erza Scarlet's Adamantine Armor. Jose made claim that it could fire beams of various power and magnitude, and the cannon itself was shown to be very resistant, suffering no damage at all from Natsu's assaults.
Jupiter was powered by a very large Lacrima crystal placed behind its barrel, functioning as its feeder, and took 15 minutes to recharge, after every blast. Such Lacrima, secured to both the floor and the ceiling of the large room it was in, was round and mat, and had several, large wires attached to it, plus a number of other machinery surrounding it, with many of them possessing massive gears (though the anime instead portrayed it as several, distinct spherical crystals). The crystal grew more and more bright as the Magic Power required to fire Jupiter was gathered, eventually becoming enveloped in sparks as the cannon readied to fire.
The Lacrima was eventually destroyed by Natsu before Jupiter could fire a second blast against Fairy Tail, prompting the cannon itself to crumble.
Super Mage Giant Phantom MK II
Super Mage Giant Phantom MK II (超魔導巨人ファントム Ｍｋ ＩＩ Chō Madō Kyojin Fantomu Mk II), Phantom Lord's most powerful weapon, as stated by Totomaru, was a gigantic, robotic Mage in which Phantom Lord's headquarters could transform via its mechanical components. This was achieved by turning the building on one of its sides, having it stand on the mechanical legs placed on that side, and then completely changing its layout, with several legs being detached from the body, a single, more massive pair remaining in the lower part, where the base stood; two more, large limbs sprouted on the top part, some mechanical parts appeared from the main body alongside several pipes, and a small, helmet-like head sprouted on the highest part. The result of such bizarre transformation was a gargantuan, humanoid mechanical being standing on two legs, possessing a pair of large arms, with its dark hands having just the thumbs and two more fingers, and bright "eyes" visible in the crack of its helmet. Smoke was produced profusely from the pipes on the upper part of its body, at its head's sides.
The Super Mage Giant Phantom MK II was capable of moving around on its legs, and, most importantly, was acknowledged as a real Mage: it was shown capable of drawing a Magic Seal in the air with its right hand in order to cast the highly destructive spell Abyss Break; an attack which, given the gigantic size of the caster and the Magic Seal itself, would have been even more destructive. Phantom Lord's elite team, the Element 4, was the source of such peculiar ability: due to Abyss Break being a spell based on the use of the four elements fire, water, air and earth, associated with the team, defeating any of them would have hindered the cast, slowing down the speed at which the robot drew the Magic Seal. At the same time, it can speed up the process of completion if one of the Element 4 releases a huge amount of magical power. The defeat of all four members not only caused the spell to fail while it was on the verge of being cast, but also prompted the entire Super Mage Giant Phantom MK II to collapse.