Porygon-Z
Base stats: 85 HP / 80 Atk / 70 Def / 135 SpA / 75 SpD / 90 Spe
Ability: Download / Adaptability
Once hailed as the only Special Attacker able to OHKO Blissey, Porygon-Z boasts the highest Special Attack in OU with two killer abilities that allow it to boost its attacks to sky-high levels. Porygon-Z can run a variety of sets, but using mostly the same coverage: Tri Attack, Dark Pulse, a Hidden Power, usually Fighting, Ground, or Fire, and Ice Beam. The most common set uses Choice Specs to blast serious holes in any opponent, even heavily dedicated walls. However, it also can use Agility or Nasty Plot to beat foes that outspeed it or outright OHKO many walls. Porygon-Z can also utilize a Choice Scarf, outpacing many foes that would beat it previously and allows it to function as a viable revenge killer. Beating Porygon-Z boils down to mostly knowing its set, but until that point it should remain a big red flag in your opponent's team.
Gallade
Base stats: 68 HP / 125 Atk / 65 Def / 65 SpA / 115 SpD / 80 Spe
Ability: Steadfast
Gallade is a unique Pokemon, boasting some of the highest Attack and Special Defense stats for any Fighting-type. While its Speed may be lackluster, top-notch coverage and the ability to increase its Attack with Swords Dance still make it very dangerous. Gallade is also one of the best anti-leads available, able to best Machamp, Azelf, Heatran, Aerodactyl, and Gengar. Thanks to Steadfast, it can use an opponents Fake Out to its advantage, boosting its Speed a great deal. A STAB Close Combat coming off a base 125 Attack and boosted by a Life Orb is nothing to joke about, but Gallade will also commonly carry Zen Headbutt, Stone Edge, Ice Punch, or Shadow Sneak, giving it all the coverage it needs to beat common Fighting-type counters. Gallade has never been a top-tier threat, but by no means should be forgotten about.
I would like to reserve Dusknoir and Toxicroak. Also, I don't believe that Starmie should be a defensive threat, seeing as there's no set on-site and would be mostly a gimmick
Also, should we be using D/P sprites or Platinum sprites, as many of them differ.
EDIT (man I'm doing this a lot...): 200th post! And a pretty good one, too...