No Guard

No Guard is an ability introduced in Generation Four that allows all the user and the foes moves to never miss. This includes the semi-invulnerable turn of moves such as Dig, Fly and Skull Bash. It can also hit a Pokémon using Protect or Detect if the move has less than 100% accuracy. The lower the accuracy, the more likely that it will hit. Moves like Magical Leaf and Swift won't hit as they have perfect accuracy and OHKO will hit as they have terrible accuracy. Also if a Pokémon with No Guard is at the front of the party, it increses the Wild Pokémon encounter rate.

Three Pokémon have this ability, all of them Fighting-Type.

Single Ability
No Pokémon have No Guard as their ownly ability.

Dual Ability
66 Machop Guts

67 Machoke [Guts]]

68 Machamp Guts

Trivia

 * All Pokémon with No Guard are of the Fighting-type, are in the same evolutionary line and all also have Guts as another abilty.