While Volbeat's offenses, physical movepool, and Speed are decidedly mediocre, he has one saving grace in his access to Trick, which gives him a slight niche as a Bug-type Choice item user. This, in tandem with U-turn's ability to scout the opposing team, can make Volbeat tricky to play around, since defensive Pokemon will be crippled by Trick, and offensive Pokemon will take a chunk of damage from U-turn. Furthermore, U-turn will help keep momentum in your favor, as well as doing somewhat respectable damage, despite Volbeat's poor Attack stat, and it's Volbeat's strongest STAB option. Brick Break nails Steel-types such as Registeel and Aggron, and with a Choice Scarf, Volbeat can outspeed +2 Adamant Aggron and do hefty damage to it. Zen Headbutt complements Brick Break and U-turn's coverage by hitting Poison-types who resist them for super effective damage, as well as offering neutral coverage on Ghost-types who take minute damage from U-turn and are immune to Brick Break. Alternatively, Ice Punch and Thunder Punch are options to hit other specific foes -- Flying-types, in particular -- for super effective damage, though they don't hit as many important foes as Zen Headbutt does. Quick Attack is also usable as a form of priority, but it is pitifully weak.
Depending on which item was utilized in the last slot, an appropriate nature must be chosen. Usually, with a Choice Scarf, an Adamant nature will suffice, since this allows Volbeat to outspeed the entire unboosted UU metagame bar Electrode; however, this does mean Volbeat misses out on beating Choice Scarf users with maximum Speed investment and base 80 Speed, which may pose an issue. Therefore, you must decide whether or not these Pokemon are a big enough issue to sacrifice the much needed power boost that Adamant provides in favor of the ability to possibly revenge kill them. If Choice Band is used, a Jolly nature is a must to outspeed max Speed Base 80s, as well as tie with other max Speed Base 85s.
Because Volbeat is simply very weak, even with a boost from a Choice Band, bulky Pokemon tend to be highly annoying. Dugtrio and entry hazards are useful for this reason; Dugtrio can trap weakened walls such as Registeel, whereas entry hazards can slowly wear bulky Pokemon down. Omastar makes an excellent candidate for setting up hazards, with great overall defenses to continually set up throughout the match. With the combination of entry hazards and Volbeat's U-turns, the opponent will find themselves weakening extremely fast. As such, powerhouses who can finish off the opposing team work well alongside Volbeat; Moltres, Alakazam, and Aggron are prime examples, boasting extremely strong attacks to muscle through the opposing team. However, on the flip side, entry hazards are detrimental to Volbeat as he will attempt to switch in and out multiple times during the match, and entry hazards hinder this endeavor greatly. As such, Rapid Spin users such as Hitmontop, Blastoise, and Donphan are good partners.