Absol, but it cannot have any of the following items: Absolite, Assault Vest, Choice Band, Choice Scarf, Choice Specs, Focus Sash, Leftovers, Life Orb, Mental Herb, Rocky Helmet, Sitrus Berry
It cannot have the following moves: Baton Pass, Blizzard, Calm Mind, Dark Pulse, Detect, Double-Edge, Facade, Fire Blast, Foul Play, Hex, Hone Claws, Knock Off, Magic Coat, Megahorn, Night Slash, Play Rough, Protect, Psycho Cut, Pursuit, Rest, Return, Rock Slide, Shadow Ball, Shadow Claw, Sleep Talk, Stone Edge, Sucker Punch, Swords Dance, Thunder, Thunderbolt, X-Scissor, Zen Headbutt, Assurance, Attract, Bite, Brutal Swing, Confide, Counter, Curse, Cut, Double Team, Dream Eater, Echoed Voice, Endure, False Swipe, Feint, Feint Attack, Giga Impact, Hail, Headbutt, Hidden Power (ANY), Hyper Beam, Leer, Mean Look, Me First, Mud-Slap, Natural Gift, Nightmare, Payback, Psych Up, Rain Dance, Razor Wind, Retaliate, Rock Tomb, Role Play, Sandstorm, Sunny Day, Scratch, Shock Wave, Slash, Snarl, Snatch, Snore, Strength
If you go Adamant or Jolly nature, its EVs must all be divisible by 5 or 13 and you cannot have more than 144 EVs in speed. If you go any other nature, you can add EVs freely but they cannot go above 152.
IVs cannot go above 20, except in defense, unless you pick a Def+ nature, in which case you can have all 31. Nickname MUST have the letters A, W, V, and C, and use the first letter of the last move of the first suggestion as the first letter of the nickname, has to have H as the fifth and seventh letter, and you cannot use U, E, W, X, I, and P unless they're the second letter.