http://serebii.net/pokedex-dp/107.shtml
Hitmonchan has always been a UU Pokemon, and sadly it was true. But with Diamond & Pearl, there was hope for this Poke. Hitmonchan has a new ability that might just move him up from the lower ranks to the top. *Insert Rocky Balboa Moment Here*
Hitmonchan @ Choice Band
Trait: Iron Fist
EV's: 252 Attack, 252 Speed, 6 HP
Jolly Nature (+Spd, -SAtk)
- Swords Dance
- Mach Punch
- Thunderpunch
- Ice Punch
Alright, seems like your standard sweeper, right? Right??? Yeah, you're right. But this fella can pack a punch. He can BoltBeam, and deal with T-Tar ezly. With D/P Hitmonchan gained a new ability, Iron Fist. This move acts as a STAB move for All "Punch"-type moves. This includes the Elemental Punches, Mach Punch, among various others. Now Hitmonchan technically gets STAB on all his punches, which is really nice. Now let's do the math, with Iron Fist the Physical Bolt Beam combo deals 112.5 dmg each, much stronger than the original BoltBeam, which is awesome. But the Holy Grail of Chan, is Mach Punch. Let's put it simple: 40 Base Damage*Fighting STAB*Iron Fist STAB = 90 Base Damage + Quick Attack Effect. Wow, May not seem like much, but it's really good. Let's not even INCLUDE A potential CB bonus. Instant KO T-tars most of the time, and can deal with many other things.
Hitmonchan @ Life Orb
Trait: Iron Fist
EV's: 252 Attack, 252 Speed, 6 HP
Jolly Nature
- Mach Punch
- Ice Punch
- Thunderpunch
- Drain Punch
Less power with the loss of CB, but a lot more survivability.