Comet Punch inflicts damage, hitting 2-5 times per use. There is a 37.5% chance that it will hit 2 times, a 37.5% chance that it will hit 3 times, a 12.5% chance that it will hit 4 times, and a 12.5% chance that it will hit 5 times. Although only the first hit can be a critical hit, each successive hit will deal the same amount of damage.
Comet Punch will end immediately if it breaks a Substitute. Bide and Counter will only acknowledge one hit of a Comet Punch attack.
Generation II onwards
Same as Generation I, except it will continue attacking after a Substitute is broken.