Moves
Brave Bird is Dodrio's main STAB move, hitting extremely hard with a Choice Band, while Return is the other STAB option that is a bit more reliable, as it doesn't deal recoil damage, and provides decent coverage. Knock Off is one of the only reasons to use Dodrio, as it is a powerful attack and utility move that removes threatening opponents' items, such as Rhydon's Eviolite, as well as hitting Rotom for super effective damage. Lastly, Quick Attack can be used as a hard-hitting priority move to finish off faster, weakened Pokemon.
Set Details
The EVs used maximize Dodrio's Attack and Speed, its best and most important stats. Choice Band is the best item to give Dodrio, letting it act as a wallbreaker and clean through teams with its extremely powerful STAB attacks. A Jolly nature lets Dodrio outspeed or Speed tie with relevant Pokemon, such as Rotom, Jynx, Xatu, Charizard, Ninetales, Kangaskhan, Haunter, and Electivire, therefore it is preferred over Adamant. Early Bird is the only ability worth using, and allows Dodrio to wake up quickly if it's ever put to sleep.
Usage Tips
Try to remove entry hazards for Dodrio, as it does not appreciate taking Stealth Rock damage. Rock- and Steel-type Pokemon should be removed beforehand so that Dodrio can have an easier time picking off the opponent's Pokemon. Dodrio's most powerful move is Brave Bird; hence, it should be used most of the time. Return is a more reliable STAB move, and should be used whenever Brave Bird's recoil is not wanted. Always predict switch-ins, and use Knock Off to cripple Pokemon such as Rhydon and Rotom, as Dodrio does not want to be caught off guard and helpless. Use Dodrio mid- to late-game for best results, as you'll want Dodrio as a hole-puncher and revenge killer that can easily take out slower opponents.
Team Options
Steel-types such as Mawile and Pawniard make for good teammates, as they can beat threatening Rock- and Ice-type Pokemon for Dodrio. Additionally, Mawile can set up Stealth Rock, and Dodrio appreciates its ability to wear down Steel- and Rock-type Pokemon. Ground-types work especially well with Dodrio, as they are able to take out Electric-, Steel-, and Rock-types, which are Dodrio's main counters, with great ease. Additionally, Ground-types appreciate Dodrio's ability to take out Grass-types. Sandslash is one of Dodrio's best teammates, as it can also Rapid Spin away Stealth Rock, which Dodrio dislikes. Water-type Pokemon such as Samurott and Gorebyss that can set up on Steel- and Rock-types are good teammates, as they can eliminate Dodrio's biggest threats. In particular, Kabutops and Pelipper make for good teammates, as they can help prevent Dodrio from taking Stealth Rock damage with Rapid Spin and Defog, respectively. Finally, Guts users such as Gurdurr and Hariyama make for good teammates, as they can absorb status, and can threaten Steel- and Rock-types that give Dodrio trouble.