Shadow Hariyama

At long, long last, Hariyama has finally surpassed Machamp in terms of Fighting Type DPS! Too bad Shadow Machamp is a thing.

Just like the way that Hariyama is a slightly worse Machamp, Shadow Hariyama is a slightly worse Shadow Machamp. But being a slightly worse Shadow Machamp is still a very strong position to be in, making it worth raising in the absence of the Champ.

Best PvE Offensive Moveset

• Force Palm is Shadow Hariyama’s optimal fast move, while Counter falls behind a bit.
• Dynamic Punch is the clearly superior Fighting-type charge move, contributing the most damage and being flexible to use.
• Superpower is a step below, and Close Combat is a further step down. 
• Bullet Punch and Heavy Slam are almost never ideal on an offensive Shadow Hariyama, even in the snow.

Best PvE Defensive Moveset

• Bullet Punch and Heavy Slam counter Hariyama’s Fairy-type weakness and hit Flying and Psychic-types with neutral damage.
• Counter is a decent alternative to Bullet Punch, but it's resisted by Shadow Hariyama's usual counters.
• Force Palm falls behind on defense.
• Dynamic Punch is better than Superpower on defense, but neither provides any coverage against Shadow Hariyama's weaknesses. 
• Close Combat takes too long to access, being a 1-bar move. 

Counter is one of the best fast moves in PvP, and Hariyama takes advantage of it with STAB. Bullet Punch is a good move stat-wise, but Steel typing isn't very meta-relevant. 

Close Combat is one of the most powerful charge moves in the game, and doesn't cost a lot of energy to use. The downside is a significant DEF debuff on the user, which makes it risky to use. Superpower performs similarly with less damage output and 5 less energy cost. However, a -1 ATK debuff (and -1 DEF debuff) can put Hariyama in a very bad spot since it could reduce its potential to finish off the opponent. Heavy Slam isn't particularly exciting, but does offer extra coverage, especially against Fairy-types.