This set is all about switching in when an opportunity arises, setting up, and then hitting incredibly hard and fast. Hone Claws only raises the user's Attack stat by one stage, and is Durant's only option for boosting. While the single-stage boost might seem lacking at first glance, it's almost like Hone Claws was designed for this Pokemon. Hustle already boosts Durant's Attack stat to 475, while Hone Claws patches the loss of accuracy Hustle brings; one boost from Hone Claws and Durant sits at normal accuracy levels and an Attack stat of 712, enough to tear nearly everything apart. X-Scissor is the best Bug-type move at Durant's disposal; while it might seem pretty weak at first glance, it has enough power to hit anything that doesn't resist it for massive damage; it's also more reliable compared to Heracross's Megahorn, which is a godsend for Durant. Rock Slide covers some of the deadliest forces in the tier; both Zapdos and Darmanitan resist Durant's other moves and Rock Slide will easily KO both of these after a Hone Claws boost. Iron Head is Durant's secondary STAB, and hits several Pokemon in the tier that can withstand both X-Scissor and Rock Slide. Gligar, one of the sturdiest walls in the tier, is 2HKOed by a boosted Iron Head, while Pokemon such as Nidoqueen, Rhyperior, and Heracross are OHKOed. Superpower is Durant's only option for taking down Steel-types. While Empoleon is 2HKOed by +1 Life Orb X-Scissor, other Steel-types such as Cobalion, Registeel, and Steelix can withstand several blows from the little ant's other moves due to their superior physical Defense.
There aren't many other viable options Durant can use, as it needs the listed moves to cover the most threats. Substitute can be used with the right team support to ease prediction and setting up. Stone Edge is a more powerful, albeit less reliable, option for Durant to use, hitting opponents much harder on the switch, as well as having a better chance to OHKO physically defensive Zapdos when Stealth Rock is absent. The choice between Life Orb and Lum Berry should be determined by your personal preference. While Life Orb is needed to get the OHKOs and 2HKOs against sturdier opponents such as Gligar, Empoleon, and Cobalion, Lum Berry can prove a useful asset to rid Durant of any unwanted status, such as burn from Scald or paralysis from Thunder Wave. Leftovers is also an option to keep Durant healthy throughout the game. Any entry hazard support is a godsend for Durant, as it will make KOing certain walls much easier for it. Claydol and Nidoqueen are great options for setting up Stealth Rock, which will help Durant net OHKOs and 2HKOs against Pokemon such as Gligar, Empoleon, and physically defensive Zapdos. Claydol can also provide useful Rapid Spin support; while Durant is immune to Toxic Spikes, Spikes will wear it down and make it much more easier to KO. Roserade and Qwilfish can provide excellent Toxic Spikes and Spikes support for Durant. While Spikes won't help much against aerial foes, they will make Pokemon such as Suicune, Cobalion, and Slowbro much easier to take down, especially if Durant lacks Life Orb.
Now comes the main issue with this Durant: its lack of coverage. If Durant lacks Superpower, almost every Steel-type in the tier will have a field day with it, by either totally crippling it and walling it to hell and back, or just setting up on it. Magneton can trap most Steel-types and KO them with its powerful Thunderbolt or Hidden Power Fire. Even though Cobalion outspeeds Magneton, a Choice Scarf will patch up the latter's lower Speed stat nicely. Slowbro is also a full stop to Cobalion, and thus pairs nicely with Durant; Cobalion can even fail to 2HKO Slowbro with X-Scissor at +2, which shows how greatly Slowbro's defensive capabilities can aid Durant. Other teammates that pair up nicely with Durant to take care of Steel-types are the many powerful Fire-types in the tier; Houndoom, Victini, and Darmanitan can turn all Steel-types into crisps. While these Fire-types can greatly aid Durant, they are also some of its greatest enemies. Victini and Darmanitan commonly wield Choice Scarves and can all outspeed Durant, making the two defensive behemoths, Snorlax and Porygon2, great teammates for Durant. Snorlax has access to Thick Fat to halve the damage it takes from Fire-type attacks, while Porygon2 can Trace Flash Fire from Houndoom and Arcanine to make their STAB moves obsolete. If, however, you choose to use Superpower over Iron Head, other problems pop up. Nidoqueen resists all of Durant's moves if it lacks Iron Head, and can easily dispose of Durant with a super effective Flamethrower. Gligar is also a big, big problem, as Rock Slide pales in comparison to Iron Head as a means of taking it down. Gligar can then proceed to easily stall out Durant with Roost and repeated Earthquakes. Pokemon such as Krookodile, Suicune, Kingdra, and even Roserade are therefore great teammates. Nidoqueen is no match for these four, while Suicune, Kingdra, and Roserade can hit Gligar extremely hard. It should be noted that Nidoqueen is only 2HKOed by Iron Head, so one should pack a Pokemon to take care of it regardless of Durant's choice of moves, as a healthy Nidoqueen can come in after a teammate has gone down and spell doom for Durant.