- Pokémon's accuracy cannot be lowered. Decreases wild encounter rate.
Level 100 Statistics (see level 5, 50, 100)
Hitmonchan is one of the worst Fighting-types in the game; about on par with Machoke. Use Hitmonlee.
Choice Band moveset. Rock Slide isn't particularly useful in UU, as even Focus Punch hits Gligar harder on the switch, but it does hit Pinsir and Scyther.
Rock Slide won't be hitting much of anything in UU, so Hidden Power Ghost is generally preferred for Solrock and Lunatone, while still hitting Gligar for almost as much.
Mach Punch is useful on there somewhere, to finish off Reversalers / Flailers, and to make up for Hitmonchan's mediocre Speed. Don't use Fire Punch, Ice Punch or ThunderPunch, as Hitmonchan's Special Attack is absolutely horrible.
Max Attack and Speed. Expect it to die quickly.
Checks and Counters
Gligar and Solrock act as effective counters, thanks to their high Defense, but Solrock can have a bit of trouble with Hitmonchan's Rock resistance, but not really that much, because Hitmonchan isn't nearly as powerful as Hitmonlee, offensively, so it can afford to take a couple hits. Slowking will also have a thing or two to say to it. Masquerain beats those without Rock Slide. Blastoise and Meganium can take hits from the Choice Band set.