Malmars ability

Um yeah… Contrary ability has been around since Generation 5 with probably the most well known user of it being the Snivy line. Yet Inkay and its evolved form Malamar are the only ones not to have it as a Hidden Ability. Contrary makes using moves that have pretty nasty debuffs insanely strong but also means any moves that would otherwise provide nice buffs(like Coil for the Snivy line) do the exact opposite. It's a double-edge Sword but I wouldn't exactly call it OP because Superpower has 5 PP. Ditto Leaf Storm(w/ 90 accuracy) and other debuff moves. If I wanted a rare ability, I'd probably take Simple over Contrary. Doubling stat changes(good or bad) seems far stronger since Swords Dance = +4. That would strike terror in just about anyone provided it had enough Speed and/or priority.

Shuckle, Spinda, and Enamorus have it, too! Contrary Shuckle + Shell Smash is pretty much taking one of the weakest Pokémon, but with the highest defenses, and making it even weaker, but even more defensive.