Common Cores — National Dex OU (2026-04)

Built for the aggressive-Offense player. This page leads with offensive cores — two-and-three-mon engines that apply constant pressure, force trades, and deny the opponent setup time. It is not a bulky-offense or hyper-offense catalogue; those archetypes appear only as the walls you must out-pace. A compact tail of defensive/utility cores is included so you recognize what you are racing against.

Every number is a real 2026-04 teammate %. Bold mon names link to their threat page. Read alongside Viability Tiers (the shopping list), Archetypes, and Building Offense (how to grow a core into six).

Legality (gen9nationaldex): Mega Evolution legal (1/team), Z-Moves legal (1/team). Sleep moves are legal. (Importing a set? See the Appendix legality checklist.) See §6 Legality.

How to read this page

The cores below are synthesized from the official Smogon moveset report (gen9nationaldex-1760, month 2026-04), specifically each Pokémon’s Teammates subsection. Smogon’s Teammates % is a conditional-minus-baseline synergy number — “how many points more often this teammate appears with me than its own baseline usage predicts.” It is directional/asymmetric and is already the correct synergy metric. A→B and B→A are cited separately throughout; the gap between them tells you who needs whom.

Method (one paragraph). A mutual pair = A lists B in its top teammates AND B lists A. Symmetric mutual-strength = min(A→B%, B→A%) — a pair counts as strong only if the preference runs both ways; we also note the sum. A trio = three mons all pairwise mutual. The full pair rows live in _research/cores-2026-04.md and /tmp/cores_2026-04.csv.

⚠ Top-10 cap caveat (important, and conservative). Each mon’s block lists only its top 10 teammates. So a pair registers as “mutual” only when both mons make each other’s top 10 — which is a high bar. Genuinely strong offensive partnerships can be one-directional in this cut: e.g. Great Tusk lists Kingambit at 17.90%, but Kingambit’s own top 10 is full (Raging Bolt / Zamazenta / Alomomola / Slowking-G / Ogerpon-W rank ahead of Tusk), so the edge is not mutual. The mutual-pair tables are therefore understated; the offense cores below deliberately draw on both mutual edges and known one-directional links, each flagged with its real directional %s. Treat low mutual-strength as “still real, just below the cap,” not “weak.”

★ Offense cores — the centerpiece

Ranked for aggressive Offense. Each core gives its members (with the standard 2026-04 set), each member’s offensive job, what it breaks, the one support slot it most wants, how to grow it to six, and the checks you must answer. Real directional teammate %s are cited inline.

The through-line: “no shared check.” An aggressive core wins when its two damage-dealers share no common defensive answer, so the opponent can’t bring one wall to both. That property drives cores ★1–★7. The recurring offensive support shell across nearly all of them is Gholdengo (block removal so hazards stick) + Landorus-Therian / Great Tusk (hazards + Intimidate/spin) — internalize that shell and most of these cores become drop-in seeds.

The core list at a glance

Cores ★1–★7 are the aggressive backbone. ★8 is the highest-strength offense pair in the data but the least “no shared check” (twin Dragons). ★9 leans BO. ★10 is a Spikes-HO seed. Pick by which support shell and Mega/Z budget your team can afford.

★1 — Ogerpon-Wellspring + Garchomp · twin wallbreaker

The flagship “share-no-checks” pair. Directional, just under the cap: Garchomp→Ogerpon-W 15.28%, Ogerpon-Wellspring→Garchomp 14.03% — a real two-way link below the top-10 mutual tier.

• Ogerpon-Wellspring @ Wellspring Mask — Ivy Cudgel / Power Whip / Swords Dance / Horn Leech or Knock Off; Water Absorb. Jolly 0/252/0/0/4/252 (82.3% standard). Fast Grass/Water SD wallbreaker.
• Garchomp @ Loaded Dice / Dragonium Z — Scale Shot / Earthquake / Swords Dance / Stealth Rock or Fire Fang; Rough Skin. Jolly 0/252/0/0/4/252 (54.8%). Ground breaker + hazard setter; Scale Shot is a speed-and-power button.
• Why it works: two wallbreakers on orthogonal defensive axes. The bulky Waters/Grounds/Steels that stop Ogerpon (Toxapex, Slowking, Lando-T) fold to Garchomp Earthquake; the Grass/Dragon answers to Garchomp fold to Ivy Cudgel + Power Whip. Their check-sets barely overlap — the opponent cannot bring one wall to both.
• Needs around it: a removal-blocker so Garchomp’s rocks stick → Gholdengo.
• Seed to six: + Kingambit (priority cleaner; Ogerpon↔Kingambit mutual 22.28 / 29.00) + Gholdengo + a Future-Sight/Chilly-Reception pivot (Slowking-Galar) to chip walls + a hazard/removal answer (Great Tusk or Landorus-Therian) + glue. (This is the spine of Offense sample team 09 — see Sample Teams.)
• Checks to beat: stacked physically-bulky grass-resists + Unaware fat (Dondozo, Clefable) brought together — overload with Garchomp hazards + a third attacker. Mind opposing Lando-T/Garchomp Ground cores.

★2 — Slowking-Galar → Kingambit · Future-Sight pivot-offense engine

The format’s defining delayed-damage engine. Mutual 22.50 / 33.60 — and the asymmetry is instructive: the Future-Sight pivot wants the Kingambit cleaner (33.60) more than Kingambit needs it (22.50).

• Slowking-Galar @ Heavy-Duty Boots / Black Sludge — Future Sight / Sludge Bomb / Chilly Reception / Flamethrower; Regenerator. Sassy 248/0/8/0/252/0. Slow pivot + special breaker that telegraphs damage and brings Kingambit in safely when the opponent respects the Future Sight turn. Assault Vest variants drop Chilly Reception for an extra attack.
• Kingambit @ Black Glasses / Leftovers — Sucker Punch / Knock Off / Iron Head / Swords Dance; Supreme Overlord. Adamant 252/252/0/0/4/0. Priority cleaner that snowballs as the game thins.
• Why it works: Future Sight + Chilly Reception create switch pressure and bring Kingambit in safely when the pivot is respected; the incoming wall then risks a +Supreme-Overlord Knock Off/Sucker into stacked Future-Sight damage. This is the engine that grinds passive balance/fat into Sucker range.
• Needs around it: hazards / entry chip so Future Sight + rocks push targets into Sucker KO range → Great Tusk, Glimmora, or Landorus-Therian.
• Seed to six: + a second breaker that abuses the forced switches (Ogerpon-Wellspring, Iron Valiant, or Raging Bolt — Kingambit↔Raging Bolt mutual 26.11 / 30.19) + Great Tusk (hazard + spin) + Gholdengo to spinblock so the chip sticks + speed control. Run only one slow pivot (see §5 anti-synergy).
• Checks to beat: Fighting-type checks and Sucker-Punch baiters (Great Tusk, Zamazenta), Unaware walls vs SD — overload with the second breaker. Per Kingambit’s own block, its checks are Iron Valiant, Great Tusk, Zamazenta, Skarmory — don’t lean on it alone into those.

★3 — Iron Valiant + Landorus-T + Gholdengo · mixed-breaker offense triangle

The cleanest aggressive triangle in the raw mutual graph — all three list each other top-10. Edges: Valiant→Lando-T 35.54 / Lando-T→Valiant 22.39; Gholdengo→Valiant 27.21 / Valiant→Gholdengo 45.05; Gholdengo↔Lando-T 28.96 / 30.21. The 45.05 is the tell: offense built around Valiant very often carries Gholdengo.

• Iron Valiant @ Booster Energy / Life Orb — Close Combat / Moonblast / Knock Off / Swords Dance or Encore; Quark Drive. Mixed nuke at a top Speed tier; Encore punishes setup/passive turns and is itself an aggressive tempo tool.
• Landorus-Therian @ Rocky Helmet / Choice Scarf — Earthquake / U-turn / Stealth Rock / Stone Edge or Taunt; Intimidate. Hazard setter + Intimidate pivot that U-turns Valiant in safely; the Scarf variant doubles as the team’s revenge killer.
• Gholdengo @ Air Balloon / Ghostium Z — Make It Rain / Shadow Ball / Nasty Plot / Recover; Good as Gold. Good as Gold blocks Defog and targeted status moves while Ghost typing blocks Rapid Spin to keep hazards up; secondary NP wincon.
• Why it works: Valiant splits physical and special walls; Lando-T hazards + Intimidate keep momentum and keep Valiant healthy on the pivot; Gholdengo makes removal awkward enough that chip often sticks. It is aggressive precisely because it stacks hazards behind a Ghost spinblocker while a top-Speed mixed breaker clicks.
• Needs around it: a Pursuit trapper or second breaker for the Latios/Gholdengo mirror → Tyranitar-Mega (Valiant↔Ttar-M mutual 25.30 / 43.91; the trio Lando-T · Valiant · Ttar-M is itself fully mutual).
• Seed to six: + Tyranitar-Mega (trap Valiant’s checks) + Kingambit (cleaner) + a glue pivot (Alomomola or Slowking-Galar).
• Checks to beat: faster offense and priority vs frail Valiant — race with hazards + Encore tempo. Volcarona is Valiant’s hardest check per its block; keep rocks up.

★4 — Raging Bolt + Great Tusk · CM breaker + hazard/spin

Mutual 24.61 / 27.74 — a genuine two-way offense link.

• Raging Bolt @ Booster Energy / Dragonium Z / Choice Specs — Thunderclap / Draco Meteor / Calm Mind / Thunderbolt; Protosynthesis. Bulky special CM breaker with priority Thunderclap — it sets up and revenge-kills frail faster threats.
• Great Tusk @ Heavy-Duty Boots / Booster Energy — Headlong Rush / Rapid Spin / Ice Spinner / Stealth Rock or Close Combat; Protosynthesis. Jolly 0/252/0/0/4/252. Hazard lead + spinner + offensive Ground.
• Why it works: behind a Calm Mind, Bolt overwhelms special walls while Thunderclap mops the frail; Tusk spins your side clean and answers the Steels/Heatran that Bolt dislikes. The Electric/Dragon special axis + Ground physical axis share almost no walls.
• Needs around it: a Ground-immune / EQ answer for Bolt (a Flying or levitator) plus a cleaner.
• Seed to six: + Kingambit (cleaner; Kingambit↔Raging Bolt mutual 26.11 / 30.19) + a physical breaker so the duo isn’t all-special (Ogerpon-Wellspring) + Gholdengo (spinblock) + glue.
• Checks to beat: fast Ground/EQ users, Unaware fat (Clefable, Dondozo), and Bolt’s listed checks Tapu Lele, Ferrothorn, Chansey, Char-X — chip with rocks and pair the physical partner.

★5 — Kingambit + Zamazenta · breaker/pivot + priority cleaner

Mutual 33.43 / 24.25 — Kingambit’s single strongest two-way partner in the data.

• Zamazenta @ Leftovers / Choice Band — Body Press / Iron Defense / Crunch / Heavy Slam (ID-Press breaker) OR Crunch / Close Combat / Stone Edge / Ice Fang (Band 3-attacks); Dauntless Shield. Jolly 0/252/0/0/4/252. Fast breaker/pivot at the 412-Speed wall.
• Kingambit — cleaner, set as ★2.
• Why it works: Zamazenta forces switches and can Iron-Defense-Press through passive teams; Kingambit cleans the weakened back half with Sucker. The Fighting + Dark double-up splits many physical walls — few answers handle both comfortably.
• Needs around it: hazards + a Fairy/Fighting-resist pivot.
• Seed to six: + Great Tusk or Landorus-Therian (hazard) + a special breaker that shares no checks (Slowking-Galar or Raging Bolt) + Gholdengo (spinblock) + glue.
• Checks to beat: fat Ghosts/Fairies vs Zamazenta, Unaware; Kingambit’s checks (Valiant, Great Tusk, Zama mirror). Overload via the special breaker.

★6 — Tapu Lele + Ogerpon-Wellspring · terrain breaker + Water breaker

Directional: Tapu Lele→Ogerpon-W 16.43% (one-way under the cap). The spine of Offense sample team 07.

• Tapu Lele @ Choice Specs / Choice Scarf / Psychium Z — Moonblast / Psychic or Psyshock / Focus Blast / Future Sight; Psychic Surge. Timid 0/0/0/252/4/252. Terrain sets the field: priority targeting grounded Pokémon is blocked under Psychic Terrain — it neuters opposing Sucker Punch / Extreme Speed into grounded targets and protects your own grounded sweepers, while Specs Psychic obliterates neutral targets.
• Ogerpon-Wellspring — as ★1, optionally Trailblaze for a Speed snowball.
• Why it works: Specs Lele + terrain is a special-side wallbreaking sledgehammer; Ogerpon SD-breaks the physical side; the Steels that wall Lele (Gholdengo, TTar) eat Ivy Cudgel / Power Whip. No single wall covers both.
• Needs around it: a Steel-breaker / Dark-resist and a hazard setter.
• Seed to six: + a hazard lead (Landorus-Therian / Great Tusk) + Gholdengo or a second breaker + a fast cleaner.
• ⚠ Terrain tension: Psychic Terrain also blocks YOUR own priority into grounded targets — Kingambit Sucker Punch and Dragonite Extreme Speed can go dead while terrain is active. If you pair Lele with priority anyway, treat priority as timer/target-dependent insurance, not your primary speed-control plan (see §5).
• Checks to beat: Steels/Dark (Gholdengo, Kingambit), Chansey/Blissey vs Lele — pair Focus Blast + the physical breaker.

★7 — Diancie-Mega + Ogerpon-Wellspring · HO Magic-Bounce lead + breaker

Mutual 39.22 / 30.02 — one of the strongest offense-tagged pairs in the whole dataset, and the HO end of the aggressive spectrum.

• Diancie-Mega @ Diancite — Moonblast / Diamond Storm / Earth Power / Mystical Fire or Stealth Rock; Magic Bounce. Hasty/Naive mixed offense. Bounces conventional status hazards/status back (pure tempo for offense), sets your own rocks, and threatens immediate damage.
• Ogerpon-Wellspring — as ★1.
• Why it works: Diancie pressures the hazard war by reflecting conventional status hazards while supplying your own rocks; Ogerpon then SD-breaks behind the chip. Bulky Steels/Waters split between Diamond Storm/Earth Power and Ivy Cudgel.
• Needs around it: a fast cleaner / second setup sweeper — this shell leans HO, so prioritize Speed.
• Seed to six: + Kingambit or a Z-sweeper (Ceruledge) + Landorus-Therian (more hazards / Intimidate) + a pivot.
• Mega/Z budget: Diancie-Mega is your one Mega — no second Mega anywhere on the team.
• Checks to beat: fast offense and priority into frail Diancie; Steels that eat Moonblast (Gholdengo). Race them.

★8 — Charizard-Mega-X + Dragonite · twin Dragon-Dance

Mutual 65.35 / 39.02 — the highest-strength offense pair outside the niche Gengar/Keldeo cluster. Included with a warning: it is the least “no shared check” core here.

• Charizard-Mega-X @ Charizardite X — Dragon Dance / Dragon Claw / Fire Punch / Roost or Earthquake; Tough Claws. Jolly 0/252/4/0/0/252. DD physical sweeper. (No threat page — high-B pick.)
• Dragonite @ Flyinium Z / Loaded Dice — Dragon Dance / Earthquake / Extreme Speed / Roost or Scale Shot; Multiscale. DD sweeper with a Z-Fly nuke + priority Extreme Speed clean.
• Why it works (and its flaw): two setup sweepers on the same axis with different coverage and priority — clear the shared answers and whichever survives sweeps. Caveat: they share Dragon weaknesses (Fairy/Ice) — one Clefable/Diancie or a fast Ice click answers both. This is core ★8’s central weakness; lean on it only when you can remove the shared checks early. Contrast with ★1–★7, where the whole point is non-overlapping checks.
• Needs around it: a Steel/Fairy answer + a Ground-immune — Gliscor or Melmetal is the data-attested glue (both list this pair; Char-X↔Gliscor 61.42 / 32.31).
• Seed to six: + Gliscor (Poison-Heal glue) + a special breaker for the Steels (Slowking-Galar / Raging Bolt) + hazard control.
• Mega/Z budget: Char-X is your one Mega — no Diancie/Scizor Mega alongside; Dragonite can hold the team’s one Z (Flyinium).
• Checks to beat: Fairies (Clefable, Diancie), bulky Steels, fast Ice — clear them before setting up.

★9 — Kyurem + Scizor-Mega · mixed breaker + priority pivot

Mutual 40.15 / 36.52 — a high-strength pair that leans bulky-offense; included for the aggressive builder who wants a raw breaker + a priority safety net.

• Kyurem @ Loaded Dice / Heavy-Duty Boots / Choice Specs — Icicle Spear / Earth Power / Freeze-Dry / Dragon Dance or Substitute; Pressure. Ice/Dragon breaker; Freeze-Dry hits Waters, Icicle Spear breaks Sashes/Subs.
• Scizor-Mega @ Scizorite — Bullet Punch / Swords Dance / Knock Off / Roost or U-turn; Technician. Adamant. Priority cleaner + slow U-turn pivot that brings Kyurem in.
• Why it works: Kyurem blows past the Ground/Water/Flying balance backbone (Lando-T, Corviknight, bulky Waters all hate Ice/Freeze-Dry); Scizor U-turns it in safely and cleans frail/weakened threats with Bullet Punch. Threatens every fat Ground-Flying team.
• Needs around it: a Steel/Fire answer — both members dislike Heatran/Fire.
• Seed to six: + a hazard pivot (Landorus-Therian) + Gholdengo or a Regen wall (Toxapex; Kyurem↔Toxapex 34.13 / 32.90) + a cleaner.
• Mega/Z budget: Scizor is your one Mega.
• Checks to beat: Heatran walls common Scizor lines and forces Kyurem to carry/click Earth Power or Groundium-Z; Iron Valiant / Diancie / Zamazenta revenge Kyurem — pair an EQ user + a dedicated Fire answer.

★10 — Samurott-Hisui lead + Diancie-Mega · Spikes-stack offense

A Spikes-HO seed. Samurott-Hisui’s #1 data partner is Gholdengo at 49.41% — the spinblocker that makes removing its Spikes costly. The spine of Offense sample team 05.

• Samurott-Hisui @ Choice Scarf / Black Glasses — Ceaseless Edge / Razor Shell / Sucker Punch / Flip Turn or Knock Off; Sharpness. Jolly 0/252/0/0/4/252. Ceaseless Edge sets Spikes as a damaging move when it hits, pivots, and Sucker-punishes - an offensive hazard lead. (No threat page — A-rank pick.)
• Diancie-Mega — as ★7 (Magic-Bounce hazard deterrent + mixed breaker).
• Why it works: Samurott threatens a Spikes layer whenever Ceaseless Edge lands; Diancie bounces conventional status hazards back and adds offense, while Samurott pressures damaging Spikes with Ceaseless Edge; together they can win the hazard war decisively, and the chip enables every breaker behind them.
• Needs around it: a spinblocker to keep Spikes costly to remove → Gholdengo (the data-attested #1 Samurott partner).
• Seed to six: + Gholdengo + a breaker that abuses Spikes chip (Kingambit / Iron Valiant) + a fast pivot + a cleaner.
• Mega/Z budget: Diancie is your one Mega.
• Checks to beat: Magic-Bounce mirrors and Boots/Defog spam — keep your own spinblocker healthy and lean on Diancie’s bounce.

The raw backbone — top mutual offense pairs (2026-04)

Read directly from the blocks, ranked by mutual-strength = min(both directions). The very top of the overall pair table is a niche Gengar + Keldeo + Charizard-X + Melmetal cluster (co-listed at 60–97% because they appear almost only together on one Mega-Char-X balance archetype) — real but not the aggressive backbone, so it is excluded here. The offense-relevant pairs are below.

Asymmetry, read out loud: Gholdengo→Valiant 27.21 vs Valiant→Gholdengo 45.05 — Valiant wants the spinblocker far more than the reverse, so offense built around Valiant often carries Gholdengo. Kingambit→Slowking-G 22.50 vs reverse 33.60 — the Future-Sight pivot wants the cleaner more than the cleaner needs the pivot. Build around the mon with the lower outgoing % and you will often find its high-% partner is close to mandatory.

Fully-mutual offense trios (all three edges in the top-10 cut)

Defensive / utility cores — what your offense is racing against

You do not match these; you overload them. Listed so you recognize the spine across the ladder.

• Alomomola + Landorus-Therian — Regen glue + Ground pivot. The single most reciprocal staple in the data (Alo→Lando 32.08, Lando→Alo 40.15). Alomomola Wish-passes + Flip Turns; Lando-T sets rocks, Intimidates, U-turns. Beat it: twin breakers + Knock Off that outpace Wish recovery; status/Taunt the Alomomola.
• Gliscor + Toxapex — Poison-Heal + Regenerator stall core; the tightest defensive pair in the data (Gliscor↔Toxapex 34.39 / 66.03). Recovers repeatedly, Toxic/Toxic-Spikes chips, hazes setup. Beat it: Unaware-ignoring raw power, Knock Off to strip Toxic Orb/Boots, Taunt, and breakers that 2HKO through Recover.
• Alomomola · Gholdengo · Landorus-Therian — the fat hazard/removal-control spine (the balance triangle every aggressive team must out-pace). Gholdengo’s Good as Gold blocks Defog and targeted status moves while Ghost typing blocks Rapid Spin; Lando supplies rocks and Alomomola keeps the core alive. Beat it: break or force out Gholdengo first (Future Sight + special pressure, Ground coverage, trapping), then clear hazards; Mold Breaker helps only against ability-based denial, not Ghost typing itself.
• Chansey / Clefable / Toxapex / Clodsire blobs — Eviolite + Unaware/Magic-Guard + Regenerator stall (Chansey↔Toxapex 60.58 / 29.04; Chansey↔Clodsire 31.57 / 28.23). Beat it: twin breakers splitting special-wall vs physical-wall duty, Knock Off, and Taunt.

The thread: these cores recover (Regenerator / Poison Heal / Wish) and remove/deny (Defog / Rapid Spin / Gholdengo’s dual denial / Haze). Aggressive offense beats them by denying recovery turns (twin breakers, Knock Off, Taunt) and forcing trades faster than they heal — never by out-stalling.

Anti-synergy / redundancy (real pitfalls)

• Two slow pivots. Slowking-Galar + Slowbro, or Slowking-G + Alomomola Flip Turn + Tornadus U-turn, drowns offense in passivity — you generate momentum with no one fast to convert it. Run one slow pivot, then a fast cleaner.
• Redundant Ground / removal. Great Tusk + Landorus-T + Garchomp stacks the same Ground STAB and the same Ice/Water weaknesses; Great Tusk + Corviknight + Gholdengo triple-stacks removal/anti-removal at the cost of offense. Pick one hazard-control plan.
• Stacking the same weakness. Multiple Steels (Kingambit + Gholdengo + Scizor-M) share Fire/Fighting/Ground pressure; the Char-X + Dragonite (or + Garchomp/Kyurem) Dragon stack folds to a single Ice/Fairy click — this is ★8’s main flaw. Keep your two breakers on different defensive axes.
• Field / weather incompatibility. Tapu Lele’s Psychic Terrain blocks your own Kingambit Sucker Punch and Dragonite Extreme Speed into grounded targets (★6’s tension) while it is active, so Lele + priority needs deliberate timer/target management. Weather and terrain coexist mechanically, but a sun/rain setter or a terrain setter can still fight teammates whose game plan needs different weather or terrain timing.
• Mega / Z budget collision. One Mega and one Z-Move per team. Don’t slot two would-be Megas (Diancie-M / Scizor-M / Char-X are mutually exclusive) or two Z-reliant sets — the second is dead weight.

6. Legality & mechanics traps (read before locking a build)

• Imported-set legality (Embody Aspect, item-locked Megas): run any copied set through the Appendix legality checklist.
• Terapagos plays as Terapagos-Terastal via its Tera Shift ability (auto form-change on switch-in behind Tera Shell). Tera Starstorm is a fixed Normal-type move here. Treat it as a fixed bulky special breaker and build the Terapagos-Terastal line 95/95/110/105/110/85. (Why its other forme is off the table → Appendix: The Tera Ban.)
• Corkscrew Crash is not a chosen move. It exists only as the Z-output of Steelium Z + Make It Rain (Gholdengo). Never list it as a moveslot — list Make It Rain + Steelium Z and note the Z-Move is the on-field result.
• One Mega, one Z per team. Budget them: a Mega cleaner/lead OR a Z-breaker. In ★7/★10 the Mega is Diancie; in ★8 it’s Char-X; in ★9 it’s Scizor — you cannot combine them.
• Sleep moves are legal (Spore / Sleep Powder / Hypnosis usable, Sleep Clause Mod on) — a legitimate aggressive tool to disable a check, unlike Gen 9 OU. It is not a top-50 core driver but it is available.
• Banned (for completeness): abilities Arena Trap / Moody / Power Construct / Shadow Tag; items King’s Rock / Quick Claw / Razor Fang; moves Assist / Baton Pass / Last Respects / Shed Tail. None appear in the cores above.

Sources & cross-links

• Data: official Smogon moveset report gen9nationaldex-1760, 2026-04 (Teammates %s). Full pair/trio derivation: _research/cores-2026-04.md; parsed pair rows: /tmp/cores_2026-04.csv.
• Next: Building Offense (turn a core into six), Sample Teams (cores ★1/★6/★7/★10 are realized as Offense teams 09/07/—/05), Speed Tiers, Matchup Matrix.
• Context: Viability Tiers, Archetypes, Top Threats index.