Moves
Knock Off is Bisharp's most reliable Dark-type STAB attack and has the added benefit of removing foes' items, which can help set Bisharp up to accumulate boosts due to putting some foes, such as Gligar and Moltres, into situations that may require restoring health or switching back out after being hit on the switch. In addition to covering various Dark-resistant foes, Iron Head can be useful for damaging foes that have already had their items removed or can't have their items removed, as well as giving Bisharp the chance to cause slower Pokemon to flinch. Sucker Punch allows Bisharp to circumvent its low Speed to damage threats faster than it like Moltres, Latias, and Zeraora. However, its reliance on the foe using an attack can make it unreliable at times. If Darkinium Z is activated, Sucker Punch turns into a powerful Black Hole Eclipse, capable of breaking past slower defensive threats like Alomomola, Mega Blastoise, and Hippowdon in one hit.
Set Details
Life Orb is the main option, which greatly boosts the power behind its STAB moves. Alternatively, Dread Plate is an option to boost the power behind the Dark-type moves Bisharp primarily spams without the recoil drawback from Life Orb, but it is worth noting it makes Bisharp more reliant on a Swords Dance boost to deal significant damage with Iron Head. Darkinium Z is another option for allowing Bisharp to more easily break past some of its would-be defensive answers like Gligar, Mega Steelix, and Mega Aggron. An Adamant nature gives Bisharp more breaking power, while a Jolly nature allows it to outrun Modest Volcanion, Adamant Mamoswine, and Bewear in exchange for less power behind its attacks. Defiant allows Bisharp to keep entry hazards on the foe's side of the field by discouraging Pokemon like Empoleon, Gligar, and Hydreigon from using Defog. It also makes Intimidate users like Mega Manectric and Krookodile wary of switching in to revenge kill Bisharp.
Usage Tips
Bisharp is best used as an early- or mid-game wallbreaker in matchups against defensive teams due to its immense power, though it can be used as a late-game cleaner thanks to its powerful STAB priority allowing it to overwhelm several offensive builds after its checks have been weakened. Bisharp can most often find opportunities to set up against Pokemon it forces out of play, such as Latias, Slowbro, Florges, and Celebi. However, since it can't come in on these threats very reliably, it is often best brought in via pivot support or after a teammate has fainted. Knock Off is Bisharp's most spammable STAB attack and should be used liberally early-game due to its ability to adequately chip down several checks and counters. It is also the best Dark-type STAB attack to use against slower or defensive foes due to its better reliability and power than Sucker Punch. Darkinium Z should be activated only with Sucker Punch due to its higher Base Power than Knock Off. Black Hole Eclipse's best use is against defensive threats that could otherwise tank a boosted hit from Bisharp and cripple it, such as Mega Slowbro, Hippowdon, Mega Aggron, and Mega Steelix, though the latter two require a fair amount of chip damage to be KOed. If it wishes to clean up late-game, Pokemon capable of outrunning Bisharp, tanking a boosted Sucker Punch, and KOing it are important to either remove entirely or weaken into range of the attack. Examples include Hydreigon, Togekiss running Flamethrower or Aura Sphere, and Fighting-types like Terrakion and Infernape. Bisharp can try using its Defiant ability to switch into a predicted Defog from an entry hazard remover like Hydreigon, Gligar, Empoleon, or Rotom-C. However, all of these Pokemon are capable of damaging Bisharp a fair amount or crippling it if it mispredicts, while other common Defoggers in Moltres, Volcanion, and Rotom-H are even riskier to switch into due to their ability to OHKO Bisharp with their super effective STAB attacks, making this a high-risk high-reward tactic.
Team Options
Bisharp fits well on all types of offensive teams in need of a wallbreaker or late-game cleaner. It's a particularly good fit on Spikes and Sticky Web-based offenses that utilize entry hazard setters like Froslass, Klefki, and Araquanid, thanks to Defiant allowing it to dissuade Defoggers from removing the entry hazards its teammates have set. Furthermore, Klefki and Araquanid can help Bisharp patch up its poor Speed through the use of Thunder Wave and Sticky Web, respectively. Stealth Rock setters like Nihilego and Krookodile also make good partners, since they can help Bisharp more easily power through foes while Bisharp itself can use Defiant to keep up the entry hazards they set. Fighting-types like Terrakion, Infernape, and Cobalion often make great partners, as they can adequately pressure bulky Steel-types that Bisharp tends to struggle with while it can check Psychic-, Ghost-, and Fairy-types for them in return. Late-game cleaners and sweepers, such as Mega Sharpedo, Mimikyu, and Mega Altaria, appreciate Bisharp's ability to weaken opposing teams for them to finish off more easily if it is being used as an early- or mid-game wallbreaker. If Bisharp would like to sweep itself, it appreciates wallbreakers such as Gengar, Mamoswine, and Nidoking that can weaken teams early for it to more easily power through later on. Sturdy Fighting-type checks are crucial due to Bisharp's vulnerability to most of them, making Primarina, Doublade, and Moltres good options for teammates. Ground-type checks like Togekiss and Celebi and Fire-type checks like Hydreigon and Mega Altaria cover the rest of Bisharp's weaknesses and patch up some of its shakier matchups, such as against Pokemon like Hippowdon and Volcanion. Pivots like Scizor, Rotom-H, and Mega Manectric can safely bring Bisharp into play, circumventing its frailty. Rotom-H can also switch into most Ground- and Fire-types for Bisharp while spreading status across the opposing team. Latias can make for an excellent teammate, covering Bisharp's Fire-, Fighting-, and Ground-type weaknesses while appreciating its ability to take on Fairy-types and opposing Latias well. If running Healing Wish, it can also give Bisharp multiple chances to set up and wallbreak throughout a match.