-Stone Edge/Night Slash/Pursuit
EVs: 4 HP/252 Atk/252 Spe
Item: Choice Band/Choice Scarf
Heracross hard-counters Darkrai. Not only does it hit Darkrai supereffectively with Megahorn/Close Combat and resist the Dark/Fighting combo, but it can also use Sleep Talk when it gets hit by Dark Void to have a 2/3 chance of screwing Darkrai over.