Scar

Scar was an Ishvalen alchemist and the brother of a disgraced former alchemist. When Scar's brother died penniless due to the actions of Hoenheim Elric, Scar swore his revenge against Hoenheim's own son, Edward Elric and the whole Elric family for all the ruin and humiliation suffered by him and his own brother, designing alchemical tattoos in order to publicly defeat him and destroy the reputation of his own family. Although his first attempt failed and he was then arrested, Scar eventually joined forces with Ling Yao, who had recruited him to share his alchemy secrets in another attempt at Edward's life until he was finally defeated by the combined efforts of Roy Mustang and Edward Elric. In a final bid, Scar sacrificed himself in a desperate attempt to destroy the Elric legacy.

Abilities
As a former warrior of Ishval, Scar is quite adept at hand-to-hand combat, boasting significant strength and stamina, remarkable agility and reflexes and deceptive speed. Scar's killing spree throughout Amestria itself is proof of his skills, as he manages to murder ten State Alchemists (including Basque Grand, who had been hailed as a combat specialist) and is able to hold his own against combat-based alchemists like Edward Elric and Major Armstrong.

Scar is also reasonably intelligent, able to comprehend some more complex alchemical texts and concepts despite having never studied the craft and an adequate tactician capable of immediately identifying and assessing his opponents' weaknesses in combat.

Alchemy: Scar's arm array is the deconstruction half of a two-piece complementary set designed by his older brother. By studying both Amestrian alchemy and Xingese alkahestry, Scar's elder brother was able to find similarities between the two and combine them into an array that incorporated their strengths. The right arm, marked with "TERRA" (the Latin word for "Earth") and "AER" (the Latin word for "Air"), carries an array incorporating twin snakes in a Caduceus pattern surrounded by reptilian scales which may represent the "Dragon's Pulse" of alkahestric origin and a series of tribal arrows leading down to the wrist, representing an outward flow. This arm is designated for deconstruction. The left arm, designated for reconstruction, is marked with the same array turned upside down to represent an inward flow and with the Dragon's Pulse tattooed in white ink rather than the black ink of the right arm. Its inward flow completes the cyclical pulse of full transmutation and it is marked with "IGNIS" (the Latin word for "Fire") and "AQUA", (The Latin word for "Water") completing the elemental tetrad.