Maybe it's just that it's unpopular, but I've still yet to see a single Slaking used in competitive battling that doesn't know Hammer Arm.But if Slaking had ANY fighting-type move of sort, it would win.
What no one seems to get is that Slaking is not lazy, it's actually resting to save power for the next turn.unlike Slaking who likes to take a rest every while.
Well, Slaking can use Skill Swap. That makes him a lot more dangerous than you might expect, as well as crippling your opponent's Pokemon.