Darktail/PR

Personality and traits
Darktail is a big, muscular, glossy white tom with black spots breaking up the white, black spots around his blue eyes, huge paws, and a long black tail, hence his name.

Arrogant, cunning and viciously ruthless, Darktail has no mercy, compassion or respect for his enemies or for cats that are weaker than himself. He is extremely cruel and sadistic, and likes to physically and psychologically torture his victims. A prime example of Darktail's sadism is shown when he captured four injured RiverClan cats and tortured them by leaving their wounds to fester, depriving them of food and humiliating them by forcing them to swear an oath of loyalty to him in return for food, and then continuing to starve them anyways. Another example of Darktail's sadism is shown when he attempted to punish Violetpaw for betraying him by drowning her best friend, Needletail, right in front of her. As stated by Darktail himself, he did this because he knew killing Needletail would hurt Violetpaw more than anything else.

However, Darktail is also undeniably intelligent and charismatic; he is a master manipulator. He was able to gather a very large number of rogue cats to him and gain their fanatical loyalty. He was also able to not only tempt ShadowClan's younger members away from their Clan, but eventually convinced almost the entire Clan to turn against their "weak leader". He is also a highly skilled and capable fighter and tactician, notably defeating Mistfeather, Rowanstar, Reedwhisker and Onestar, all of whom were fully trained warrior cats, in single combat, respectively. However, it should be noted that all these cats were not at the peak of their strength at the time; Mistfeather was half-starved and weakened from living as a loner, Rowanstar was still recovering from an illness, Reedwhisker was already exhausted due to fighting, and Onestar was very old and not quite as strong as he once was. Regardless of this, Darktail is still a formidable opponent.

Darktail is an extremist and a Social Darwinist, believing only the strong deserve to survive. As noted by Dragonfly, one of his followers, he isn't only intolerant of sick cats, but actually despises them and outright abuses them, berating them for being sick and even attempting to prevent them from healing themselves, believing they don't deserve to live. While Darktail does value his followers for their loyalty and usefulness, he will abandon them with a second thought if any of them get sick, even if that cat has been one of his most loyal followers.

Darktail is also treacherous and, despite his claims to the contrary, has no personal sense of honor or responsibility; he is a liar and a hypocrite. At one point, he states that he believes sharing is "very important", but this is a downright lie because, as mentally noted by Violetpaw, Darktail only shares when it suits his own personal needs. Furthermore, despite being a strong and capable fighter and tactician, he is not above using brutal or underhanded methods to win battles; e.g. ordering his accomplices to attack his opponent while their back is turned or sending the weaker cats onto the battlefield first as fodder. Darktail has no respect for his enemies, and demonstrates this by refusing to bury their bodies or even to let their friends bury them.

However, there is a deeper motivation behind Darktail's actions. According to Onestar and Darktail himself, Darktail's dark nature and actions against the Clans are rooted from his father's rejection of him as a kit and his mother, Smoke, subsequently teaching him to hate the Clans for this rejection. As stated by Onestar, the reason why Darktail hates and disrespects the warrior life is because he never even got the chance to understand it.