Hariyama

Hariyama was once the TDO-version of Machamp, but now it's just... not good. It's outclassed in all that it does, though in the main series it had a signature attack on its release called "Arm Thrust". While this Fighting Type move is no longer truly a signature attack, it could be a way to buff Hariyama's performance if it's ever added.

Best PvE Offensive Moveset

• Force Palm is Hariyama’s optimal fast move, though Counter is a very close second.
• Dynamic Punch is the clearly superior Fighting-type charge move, contributing the most damage and being flexible to use.
• Superpower is a step down, and Close Combat is a further step down. 
• Bullet Punch and Heavy Slam are almost never ideal on an offensive 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 Hariyama's usual counters.
• Force Palm falls behind.
• Dynamic Punch is better than Superpower on defense, but neither provides any coverage against 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 the potential of finishing off the opponent. Heavy Slam isn't particularly exciting, but does offer extra coverage, especially against Fairy-types.