Aegislash's valuable defensive profile and immense natural bulk in Shield forme make it perfectly capable of forcing out and setting up on passive Pokemon such as Slowking, Jirachi, and Amoonguss. Substitute allows Aegislash to take advantage of the aforementioned Pokemon's inability to deal sufficient damage to it while also protecting it from potential status moves from these Pokemon; it also allows it to safely land Toxic on incoming defensive walls such as Hippowdon and Gastrodon, stalling them out in conjunction with King's Shield and recovery from Leftovers. Shadow Ball serves as Aegislash's main STAB move, and alongside Aegislash's naturally high Special Attack stat, is useful for putting pressure onto Toxic-immune Pokemon such as Excadrill, and Mega Sableye. The given EV spread allows Aegislash to 2HKO offensive Excadrill with Shadow Ball after Stealth Rock damage and Leftovers recovery, outspeed uninvested Scizor, and avoid the 2HKO from Enamorus's Earth Power and Mega Gardevoir's Mystical Fire after Stealth Rock. SubToxic Aegislash fits best on bulky offense and balance teams that appreciate its ability to safely set up on and wear down defensive Pokemon while also making use of its ability to simultaneously check offensive threats such as Mega Latias. Due to Aegislash's fear of status moves, like Scald burns from the likes of Slowking, as well as Spore from Amoonguss, pivots such as Flip Turn Keldeo, Teleport Slowbro, and Teleport Blissey are helpful to ensure that Aegislash finds safe opportunities against them. Other defensive Pokemon such as Buzzwole, Skarmory, and Clefable can form notable cores with Aegislash; the former two take advantage of Dark- and Ground-types such as Tyranitar and Hippowdon, while Clefable provides additional support in staving off the likes of Buzzwole, which can potentially nail Aegislash on the switch with Earthquake. Knock Off users such as the aforementioned Clefable and Assault Vest Tangrowth are also helpful, as they can remove items from checks to Aegislash like Leftovers from Celesteela and Heavy-Duty Boots from Scizor, giving it an easier time breaking through them in the long-run.

Swords Dance turns Aegislash into a potent wallbreaker and sweeper, using its fantastic neutral coverage and bulk in Shield forme to set up against and break through defensive cores. Close Combat is Aegislash's strongest move overall, and it threatens the many Dark-types that would otherwise resist its Ghost-type STAB moves, like Tyranitar Hydreigon. Iron Head is an alternative option that still OHKOes the former two after a boost while also 2HKOing Unaware Clefable. Shadow Sneak is a crucial priority move which at +2 can finish off weakened offensive Pokemon that would normally outspeed and take it out, such as Mienshao and Keldeo, while also being usable to pick off Alakazam without a boost. An Adamant nature is preferred to maximize Aegislash's power, while a Jolly nature can be used instead to get the jump on Pokemon such as Adamant Tyranitar and Bisharp as well as slower variants of Rotom-Wash. However, this results in Aegislash missing out on certain damage thresholds, such as being unable to OHKO Mega Venusaur at +2 with the combination of Shadow Claw into Shadow Sneak. Ghostium Z is usually preferred to power up STAB Shadow Claw, which, when turned into Never Ending Nightmare, threatens to KO physically defensive Pokemon such as Skarmory and Amoonguss after Swords Dance. However, Air Balloon can be run instead if the team already has a different Z-Move user, and this also allows Aegislash to find free setup opportunities against Ground-types such as Excadrill and Hippowdon, potentially spinblocking the former. Aegislash fits best on more offensive teams that appreciate its defensive utility and ability to break open holes for its teammates early-game. Aegislash also suffers from having terrible bulk in Blade forme, so it is easily revenge killed after attacking, making entry hazard support from the likes of Mew, Swampert, and Tyranitar helpful at chipping down offensive threats like Excadrill into Shadow Sneak range while also pressuring other walls such as Rotom-Wash.

Aegislash's excellent offenses and deep coverage allow it to function as an effective mixed attacker, slicing through a huge portion of the metagame, including defensive staples such as Mega Latias, Slowbro, and Blissey. Additionally, Aegislash's superb defensive traits mean it takes relatively little from their attacks in return, allowing it to find repeated entry against them, as well as soft-check dangerous offensive threats such as Mega Gardevoir, Mega Aerodactyl, and Alakazam. Close Combat forms perfect neutral coverage with Shadow Ball, ensuring Aegislash can consistently threaten the likes of Tyranitar, Bisharp, and Hydreigon. King's Shield provides Aegislash with defensive security against potential revenge killers such as Tyranitar and Hydreigon while scouting Choice item Pokemon such as Keldeo and Iron Boulder. Shadow Sneak gives Aegislash a valuable priority move that can pick off faster threats such as Blacephalon, Iron Boulder, and Mega Gallade. Alternatively, Toxic allows Aegislash to cripple specially defensive Pokemon such as Galarian Moltres and Hippowdon which would otherwise be able to check it, letting Aegislash wear them down effectively in conjunction with King's Shield. Flash Cannon provides a secondary STAB move that consistently threatens Clefable while OHKOing Mega Aerodactyl and Tapu Bulu, something which Shadow Ball into Shadow Sneak cannot do; however, it has little use outside of this. Even with this set's offensively oriented nature, Leftovers is crucial to provide Aegislash with passive recovery, allowing it to leverage its defensive traits and find more opportunities to attack. If longevity isn't a concern, Ghostium Z and Spell Tag are options that can be used on more aggressive teams to boost Shadow Ball's power, letting Aegislash muscle through defensive checks such as Mega Venusaur, Scizor, and Celesteela with greater ease. The given EVs, besides maximizing its Special Attack, ensure Aegislash can 2HKO Chansey with Close Combat after Stealth Rock and outspeed defensive Celesteela, with 240 EVs in HP allowing Aegislash to survive absurdly strong attacks such as Excadrill's Earthquake after Stealth Rock and Tyranitar's Knock Off. Alternatively, Aegislash can opt to run more Speed EVs over HP to outpace various targets, including Scizor, defensive Buzzwole, and Azumarill. However, this comes at the significant cost of cutting into Aegislash's bulk, often compounded by the need to run a Defense-lowering nature. Mixed Aegislash fits best on bulky offense and balance teams that appreciate its incredible combination of traits, from breaking down defensive cores with its immediate power to checking faster offensive threats such as Alakazam. Defensive Pokemon such as Buzzwole and Clefable synergize well with Aegislash's ability to deal with the likes of Mega Gardevoir and Enamorus. In return, they can help manage threats such as Hydrapple and Tyranitar, which otherwise force Aegislash out, and set entry hazards to help it break through checks such as Celesteela and Hippowdon. Similarly, other wallbreakers such as Iron Boulder, Serperior, and Keldeo greatly benefit from Aegislash's ability to pivot into faster revenge killers such as Choice Scarf Mienshao and Mega Aerodactyl as well as its ability to capitalize on defensive Pokemon that they may struggle to break through in Skarmory and Blissey. Finally, Aegislash greatly appreciates teammates which can help cripple its few defensive checks; Serperior can lure in Mega Venusaur and Hisuian Goodra and paralyze them with Glare, making it easier for Aegislash to overwhelm them. Offensive pivots like Zeraora and Scizor can use Knock Off to cripple checks reliant on their item, such as Celesteela and Assault Vest Tangrowth; these two can also use Volt Switch and U-turn to ensure Aegislash can find safe entry into potential targets such as Buzzwole and Rotom-Wash.