Cobra

Erik is a slim man, with dark tan skin and spiky, upward-styled maroon hair. Tuft covering his forehead and two bangs framing his face and purple slit-pupil eyes. Slanted eyes similar to Natsu’s. Prominent canine teeth. Whitish coat with purple inner lining and cuffs intricately decorated by silver-colored motifs, high collar and the sleeves, which have armbands seemingly made of metal around them above Erik's elbows. Wears a dark shirt, and he also sports a pair of crimson leather pants held up. Being an artificial Dragon Slayer, when Erik makes use of his Dragon Slayer Magic, the tops of his hands and forearms become covered in crimson Dragon scales, while the bottoms are milky and smooth. His hands also turn into sharp, pointed, claws. Like the other members of the Oración Seis, Erik is confident and enjoys seeing his opponents suffer.[15] Erik believes that Second Generation Dragon Slayers are superior to First Generation Dragon Slayers, and even finds their existence questionable, as Dragons are believed to be extinct, and therefore finds it ridiculous that people such as Natsu were taught their Magic by nonexistent beings.[16] He also seems to be quite easy-going, and was able to laugh at a joke during a battle. Jellal enslaved Erik as a child until Brain arrived at the Tower of Heaven and took Erik and four other enslaved children to become members of his own guild, all with Jellal's permission.[18] Erik soon became a member of the Oración Seis, one of the three most powerful Dark Guilds, and, along with his guildmates, began to seek out the lost, destructive Magic, Nirvana. At some point before seeking Nirvana, Erik implanted a Dragon Lacrima into his own body, which thereby resulted in him becoming the Poison Dragon Slayer. Cobra, along with the other members of the Oración Seis, attacks the Allied Forces; he engages Erza Scarlet in combat. The two battle on equal ground, that is, until Racer and Hoteye join the fray, turning their conflict into a three-on-one battle. Using the openings granted by his comrades, Cobra orders Cubellios to bite Erza's arm, poisoning the S-Class Mage. As Erza reels from the assault, Cobra informs her that the poison isn't fast-acting and will kill her slowly. Cobra, on Brain's orders, follows Jellal, as they believe that he is trying to steal Nirvana from them. Cobra eventually succeeds in finding Jellal and bares witness to Nirvana's activation.[26] Distracted, Cobra continues watching Nirvana activate, allowing Erza to arrive at the scene unnoticed. Seeing her, Cobra becomes shocked, having believed her to have died at the hands of Cubellios' poison. By having a Dragon Lacrima implanted into his body, Erik obtained the ability to use this Magic. It grants him the power to produce poison from his body and to consume the one produced from external sources to heal and strengthen himself, which, as a result, grants him immunity from poison. The poison that he produces from his skin is so corrosive that it is said to be able to decay all that it touches, but can also act after a given amount of time: Erik stated that its effects are first visible in a progressive weakening of the victim's body, which then results in death.[69]

Poison Dragon's Twin Fang (毒龍双牙 Dokuryū Sōga): Erik moves his arms forward in a cross, forming a very large amount of poison in two massive waves shaped like fangs, which he uses to attack his opponents with great blunt force.[70] In the anime, this spell was portrayed differently, with the generated poison being split in many elongated, snake-shaped masses, which all move towards the opponent at once.[71] Poison Dragon's Roar (毒龍の咆哮 Dokuryū no Hōkō): Erik's exclusive Dragon's Roar, incorporating the element of poison. Erik quickly gathers and releases poison from his mouth in the form of deadly, poisonous stream that, when it makes contact with the target, injects a lethal virus into their body that slowly weakens them and restricts their movement before ultimately killing them.[72] Poison Dragon's Fang Thrust: Erik generates a wave of poison, shaped like a lar