Scyther

Ever since the introduction of Scizor in GSC, Scyther has been living in the shadows of its evolution. In times since, Scyther has been penalized first by its lack of bulk, and then by the introduction of Stealth Rock, which strips away half of its health just for entering the battlefield. Even the blessing of Technician went mostly unnoticed. However, while Generation V did not bring Scizor anything of offensive value, it gave Scyther Eviolite. With this new item, Scyther attains higher defenses than its evolution. Despite this, Scyther is still relegated to UU due to its poor typing, lack of a powerful coverage or STAB priority move, and the need to rely on Eviolite to be defensive--not to mention that it still loses half of its health when switching in to Stealth Rock. Despite these flaws, its base 110 Attack, base 105 Speed, Technician, and Eviolite allow Scyther to perform many different roles, making it a viable choice in UU.