|Photo Credit by Tremblax|
During the last day of the Grand Magic Games, Sting wore a dark blue, gold trimmed jacket, as well as a black, high-collared piece of what appears to be armor underneath, exposing, yet again, his abdominals. With this, Sting wore light-gray colored pants with fang-like designs on the side; he accessorized his outfit with two different belts: one around his waist and one below that that holds a feather boa. His pants are tucked inside boots that are extremely reminiscent of his original pair.
After the events of Tartaros unfold, Sting appears sporting an outfit similar to his usual attire, albeit with minor modifications. He now wears a light-colored jacket with dark-colored clothing protruding from the inside, with the collar pointed upwards; his new jacket still retains the feather boa. Sting retains his old gloves that cover the majority of his arms and also wears a striped belt and dark pants, which are tucked inside his dark-colored boots.
Sting is a rather calm individual and is usually seen smiling; he rarely ever loses his temper. Sting believes that people who abandon their comrades are scum and does not hesitate to punish them for their acts. Curiously, however, he was angered when Natsu Dragneel said that fighting for his comrades was his reason for entering the Grand Magic Games. Sting seems to have no qualms about having killed his own foster father, thinking that it is natural for a Dragon Slayer to kill a Dragon. This is later shown to be untrue, as both he and Rogue express regret when the Dragons attack Crocus. As such, Sting thinks that Dragon Slayers who are defeated by a Dragon are nothing but a disgrace. Also, as a Dragon Slayer, Sting stereotypically, yet comically, suffers from motion sickness, describing the phenomenon as one befitting of a "real" Dragon Slayer.
Sting enjoys watching fights, as he was excited to see Orga and Warcry fight, however, he was disappointed that Orga finished his fight rather quickly. He also desires to fight strong opponents, as after Natsu showcased his strength against Jiemma and much of the Sabertooth Guild, Sting became very excited, relishing in the fact that Natsu was much stronger than he had previously thought. He has also shown good sportsmanship and prefers not to mock others, even after defeating them. After Natsu and Gajeel were seemingly defeated by his Dragon Force, he looked down at them and commended them for putting up a good fight, even though they appeared to be lying down on the ground in defeat.
Sting is also quite arrogant as well, often boasting about his superiority as a Dragon Slayer. After Yukino was excommunicated from Sabertooth for her failure, Sting was not the least bit troubled, rather, he stated that as the strongest guild, they had no need for weaklings. In regards to the matter, Sting only expressed joy at the fact that Sabertooth's five strongest Mages would be reassembled for the Grand Magic Games, as the fifth member was on her way. He also has a sadistic side, going as far as to laugh at Minerva's torture of Lucy. However, he cares a great deal for his fellow guildmates and his Exceed companion, Lector. He demonstrates extreme loyalty towards his friends and is not quick to break any promises that he makes, especially to Lector. Sting is willing to go as far as using Dragon Force in order to win battles for Lector's sake. He and many of his fellow guildmates were horrified when Jiemma had apparently killed Lector, showing that Sting possesses some degree of morals. He also has a vengeful side, shown when he attacked Jiemma in a grief induced rage for "killing" Lector. Upon reuniting with Lector, Sting cried tears of joy.
After Lector's capture by Minerva, Sting's personality changed considerably; being much more serious and solemn. This is exemplified by his attack on Bacchus: Rather than attacking Bacchus with his usual gusto, Sting attacked him quickly and quietly, completely devoid of emotion.
However, as the current Guild Master of Sabertooth, he seems much more cheerful. He has developed a much happier demeanor and is now more easy-going with others. Sting is excited to improve the guild and work together with his teammates to get the job done, demonstrating his cooperative and social side. He also has no qualms with the members continuing to refer to him as Sting, as shown when Lector accidentally called his name instead of using his title. Compared to Rogue, Sting is the more sensitive of the two Dragon Slayers, wearing his heart on his sleeve and openly crying when he is overcome with grief, with Rogue even jokingly calling him "Master Crybaby" once. This is shown most prominently after Sabertooth's brutal defeat at the hands of the Alvarez Empire, since he takes this loss worse than any of his teammates, and openly sobs about how pathetic he is to do anything. Even after Yukino convinces him that it's his responsibility to encourage everyone to continue fighting despite their loss, he still considers himself to be a pathetic master, showing that he is still insecure with himself filling in the role as the leader of Sabertooth.
Originally born four hundred years ago, Sting, an orphan, was raised by the Dragon Weisslogia, who taught him White Dragon Slayer Magic; Sting subsequently became a host for his foster father's weakened soul, which allowed his Dragonification process to be halted due to the presence of new antibodies in his body. To ensure that Sting did not remember any of what had happened, Weisslogia implanted the memory that Sting had been forced to kill him and the results he would have actually achieved had such a thing been done. After the deed was finished, Sting and four other young Dragon Slayers were sent four hundred years into the future via the Eclipse Gate, arriving on July 7, X777, so as to allow Weisslogia time to recover in the Ethernano-dense world in the hopes that he, and the other damaged Dragons, could heal enough to stop Acnologia.
Some unspecified amount of time later, Sting was approached by the Exceed Lector, who saw Sting's strength and wanted to learn how to become stronger, begging to become his disciple. Surprised that Lector wasn't afraid of him, Sting agreed to allow the young Exceed to follow him. Some while after this, Lector once bragged to people that Sting killed his own parent (a Dragon), but was bullied for it, causing him to cry. Not wanting him to cry anymore, Sting promised Lector that he would challenge a man known as the Salamander, whom he was a fan of at the time, and defeat him; that way, Lector's words would not be taken as lies.
At some point in his life, Sting also implanted Dragon Lacrima into his body, thereby making him a Third Generation Dragon Slayer.