Naclstack counters

#0933

rockTier 1

Lobby CP

3,888

600

Timer

3:00

Attack

Defense

104

Difficulty

0.06

Pokebattler scale

Beating Naclstack should take 1 trainer with level 40 counters. Caught CP 687-738.

Weak tofighting1.6xground1.6xsteel1.6xwater1.6xgrass1.6x

Who to bring

IncludeMega Legendary Shadow

Improve your raidweather · friendship · Mega in the lobby · Party Power · Adventure EffectsShow ▾

Weather

★ boosts a type this boss is weak to

No boost Sunny or clear ★Rainy ★Partly cloudy Cloudy ★Windy Snow ★Fog

Friendship

every trainer in the lobby who is your friend

None Good friend (+3%)Great friend (+5%)Ultra friend (+7%)Best friend (+10%)

Mega in the lobby

a Mega boosts every trainer's attacks: 1.3x of its own type, 1.1x of others

Try a Steel Mega — most top counters attack with Steel

Party Power

Party Play: the charged move after a full meter does 2x

Off 2 trainers 3 trainers 4 trainers

Adventure Effects

only these three change a raid

Behemoth Blade (+10% attack)Behemoth Bash (+10% defense)Dynamic Punch+ (+15% attack vs Mega)

Of the game's eleven Adventure Effects only Behemoth Blade (Crowned Sword Zacian), Behemoth Bash (Crowned Shield Zamazenta) and Dynamic Punch+ (Mega Mewtwo X) change a raid; Roar of Time, Spacial Rend, Freeze Shock, Ice Burn, Sunsteel Strike, Moongeist Beam, Future Sight+ and Dynamax Cannon act outside raids. Dynamic Punch+ only counts against a Mega boss, so it changes nothing here. Sources: the full list, Behemoth Blade / Bash, Dynamic Punch+.

Best counters

Mega, Legendary, Shadow · level 40

The best Naclstack counters are Mega Mewtwo X, Shadow Landorus (Therian), Necrozma (Dusk Mane), Zamazenta (Crowned Shield), Shadow Excadrill & Zacian (Crowned Sword).

Suggested party of sixat most one Mega

M. Mewtwo X
S. Landorus (Therian)
Necrozma (Dusk Mane)
Zamazenta (Crowned Shield)
S. Excadrill
Zacian (Crowned Sword)

8 more Megas ranked inside the top six — a party can hold only one Mega, so the best one stays and the next non-Mega takes the slot.

Ranked by Estimator (trainers needed); small print: time to winOrder byEstimatorOverall %

1Mega Mewtwo XMegaLegendarypartyPsycho Cut / Dynamic Punch+0.050:08
2Mega GreninjaMegaBubble / Surf+0.060:10
3Mega LucarioMegaForce Palm / Aura Sphere0.060:11
4Mega ChesnaughtMegaVine Whip / Seed Bomb+0.060:11
5Mega StarmieMegaPsywave / Liquidation+0.060:11
6Mega FalinksMegaCounter / Brick Break+0.070:12
7Mega Mewtwo YMegaLegendaryConfusion / Future Sight+0.070:12
8Shadow Landorus (Therian)ShadowLegendarypartyMud Shot / Sandsear Storm0.070:12
9Necrozma (Dusk Mane)LegendarypartyPsycho Cut / Sunsteel Strike0.070:12
10Mega GalladeMegaLow Kick / Sacred Sword0.070:13
12Zamazenta (Crowned Shield)LegendarypartyMetal Claw / Behemoth Bash0.070:13
13Shadow ExcadrillShadowpartyMetal Claw / Earthquake0.070:13
14Zacian (Crowned Sword)LegendarypartyMetal Claw / Behemoth Blade0.070:13

More orders under All settings (Sort by). The top 15 in detail.

Build and order a party of six →Plan your raid lobby →

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The Pokebox saved in this browser · each at its own level, IVs and moves.

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Raid tier — Solo Raid

Super Mega Legendary Super Mega Primal Mega Legendary Mega Elite Shadow Tier 5 Tier 5 Shadow Tier 3 Tier 3 Shadow Tier 1 Tier 1 Tier 4 Tier 2

Related countersShadow Naclstack

Raid alerts…

Top 15 Naclstack counters in detail

Click a row for damage per move, breakpoints and the energy cycle. Click a column to sort. All 30 ranked attackers, with every column, are under All settings.

Trainers1soloable

#	Attacker	Moveset
1	Mega Mewtwo Xpsychicfightingjoint top pick	psychicPsycho CutfightingDynamic Punch+	6,112	0:08	0.05	5309.4%
2	Mega Greninjawaterdark	waterBubblewaterSurf+	3,784	0:10	0.06	4195.1%
3	Mega Lucariofightingsteel	fightingForce PalmfightingAura Sphere	3,826	0:11	0.06	4036.9%
4	Mega Chesnaughtgrassfighting	grassVine WhipgrassSeed Bomb+	4,093	0:11	0.06	3792.0%
5	Mega Starmiewaterpsychic	psychicPsywavewaterLiquidation+	3,701	0:11	0.06	3791.1%
6	Mega Falinksfighting	fightingCounterfightingBrick Break+	3,670	0:12	0.07	3725.6%
7	Mega Mewtwo Ypsychic	psychicConfusionpsychicFuture Sight+	6,428	0:12	0.07	3697.2%
8	Shadow Landorus (Therian)groundflying	groundMud ShotgroundSandsear Storm	3,922	0:12	0.07	3633.1%
9	Necrozma (Dusk Mane)psychicsteel	psychicPsycho CutsteelSunsteel Strike	4,099	0:12	0.07	3487.8%
10	Mega Galladepsychicfighting	fightingLow KickfightingSacred Sword	4,521	0:13	0.07	3462.8%
11	Mega Sceptilegrassdragon	grassBullet SeedgrassFrenzy Plant	4,056	0:13	0.07	3432.8%
12	Zamazenta (Crowned Shield)fightingsteel	steelMetal ClawsteelBehemoth Bash	4,172	0:13	0.07	3353.6%
13	Shadow Excadrillgroundsteel	steelMetal ClawgroundEarthquake	3,244	0:13	0.07	3322.9%
14	Zacian (Crowned Sword)fairysteel	steelMetal ClawsteelBehemoth Blade	4,979	0:13	0.07	3300.3%
15	Mega Heracrossbugfighting	fightingCounterfightingClose Combat	4,814	0:13	0.08	3229.4%

Ordered by Estimator alone, fewest trainers needed first. . The place badge names each row's Overall place on hover.

Times are one trainer with six copies of that attacker, level 40 at 15/15/15, no weather, no friendship, no dodging, Shadow / Mega / Legendary attackers hidden — the same defaults pokebattler.com's own counter pages open with. Open the full counter tool to change any of them. "Details" opens the per-move damage, breakpoints and energy cycle against Naclstack.

Estimator is how many trainers of this strength the fight needs. Power is the share of Naclstack's HP that six of that attacker remove inside one raid timer, so over 100% means they finish it with time to spare. Faints is how many of the six go down inside that timer.

Hardest movesets to raid against

The same boss is a different fight depending on what it knows. Each row re-simulates the top 6 counters above against one specific moveset; the list is ordered hardest first, and clicking a row filters the whole page to that moveset — the ranking, the estimator and the share link all follow.

Boss moveset	Win % (1)	Overall	Power	Time to win	Estimator
Random (any moveset)showing	100%	1177%	3635.1%	0:12	0.07
Mud Shot / Rock Tomb	100%	1179%	3616.3%	0:12	0.07
Mud Shot / Ancient Power	100%	1172%	3620.4%	0:12	0.07
Smack Down / Rock Tomb	100%	1201%	3628.8%	0:12	0.07
Smack Down / Ancient Power	100%	1183%	3633.0%	0:12	0.07
Mud Shot / Rock Blast	100%	1145%	3637.2%	0:12	0.07
Smack Down / Rock Blast	100%	1150%	3645.7%	0:12	0.07

Measured over the top 6 attackers on the list above rather than by re-ranking the whole roster once per moveset — the ordering is what the table is for, and a full re-rank per moveset would cost ten times the page's whole simulation budget. Win % is the share of runs 1 trainers of those attackers finish inside the raid timer. Overall is Pokebattler's published blend on its own absolute scale (higher is easier), not a percentage of the best row the way the ranked table's Overall column is — which is why an easy boss reads well above 100% here.

Simulating each boss moveset…

Naclstack weaknesses and resistances

Every one of the 18 attacking types against this boss's typing. GO multipliers: 1.6x super effective, 2.56x doubly, 0.625x resisted, 0.39x doubly resisted.

fighting1.6x ground1.6x steel1.6x water1.6x grass1.6x rock1x bug1x ghost1x electric1x psychic1x ice1x dragon1x dark1x fairy1x normal0.63x flying0.63x poison0.63x fire0.63x

Weak (5)
Neutral (9)
Resists (4)

It resists normal0.625xflying0.625xpoison0.625xfire0.625x— bringing one of those is throwing damage away.

What Naclstack throws at you

Its standard movepool, with the damage window a dodge has to beat.

Fast moves

Move	Power	Energy	Duration	Hits at
rockSmack DownSTAB	13	+7	1.0s	0.60s
groundMud Shot	4	+6	0.5s	0.25s

Charged moves

Move	Power	Energy	Duration	Hits at
rockRock BlastSTAB	50	-33	2.0s	1.50s
rockRock TombSTAB	65	-50	3.0s	2.05s
rockAncient PowerSTAB	70	-33	3.5s	2.85s

Catch CP

What the encounter after the fight can hand you.

IV spread	CP at L20	CP at L25 (weather boosted)
10/10/10floor	687	859
11/11/11	697	871
12/12/12	707	884
13/13/13	717	897
14/14/14	728	910
15/15/15hundo	738	923

Caught CP range 687 - 738, or 859 - 923 when the weather boosts it.

A raid encounter is level 20 (level 25 weather boosted) and cannot roll an IV below 10/10/10. Anything outside the first range is not this raid's reward.

When it is in raids

From the raid schedule, refreshed daily.

Naclstack is not on the raid schedule right now. The simulation above is still exact for the tier chosen — any boss can be simulated, current or not.

All settings

Tier 1: 600 HP, 3:00 timer, boss Attack 71 / Defense 104 (15/15/15 at tier CPM 0.5974).

Raid bossAttacker levelAttacker IVsWeatherFriendshipDodgingTrainers in the lobbyMega in the lobbyParty Play trainersBoss fast moveBoss charged moveSort by

Attackers allowed

ShadowMega and PrimalLegendary, Mythical, Ultra BeastLegacy and Elite TM moves

Share these exact settings

Every column, and pokebattler.com's own rank

On a phone the list shows estimator, time to win and faints. Overall, Power, win chance, CP, DPS and TDO appear on a wider screen.

#	Attacker	Moveset	Overall	Power	Est.Estimator	TimeTime to win	Win % (1)	CP	DPS	TDO
1	Mega Mewtwo X psychicfightingmega Psycho Cut / Dynamic Punch+	Psycho Cut / Dynamic Punch++26 more movesets	100%	5309.4%	0.05	0:08	100%	6,112	76.8	630
2	Mega Greninja waterdarkmega Bubble / Surf+	Bubble / Surf++17 more movesets	63%	4195.1%	0.06	0:10	100%	3,784	58.3	606
3	Mega Lucario fightingsteelmega Force Palm / Aura Sphere	Force Palm / Aura Sphere+23 more movesets	66%	4036.9%	0.06	0:11	100%	3,826	58.9	635
4	Mega Chesnaught grassfightingmega Vine Whip / Seed Bomb+	Vine Whip / Seed Bomb++20 more movesets	64%	3792.0%	0.06	0:11	100%	4,093	53.1	609
5	Mega Starmie waterpsychicmega Psywave / Liquidation+	Psywave / Liquidation++44 more movesets	57%	3791.1%	0.06	0:11	100%	3,701	52.4	603
6	Mega Falinks fightingmega Counter / Brick Break+	Counter / Brick Break++7 more movesets	60%	3725.6%	0.07	0:12	100%	3,670	60.0	702
7	Mega Mewtwo Y psychicmega Confusion / Future Sight+	Confusion / Future Sight++26 more movesets	59%	3697.2%	0.07	0:12	100%	6,428	53.1	626
8	Shadow Landorus (Therian) groundflyingshadow Mud Shot / Sandsear Storm	Mud Shot / Sandsear Storm+9 more movesets	52%	3633.1%	0.07	0:12	100%	3,922	50.6	607
9	Necrozma (Dusk Mane) psychicsteel Psycho Cut / Sunsteel Strike	Psycho Cut / Sunsteel Strike+14 more movesets	55%	3487.8%	0.07	0:12	100%	4,099	48.2	602
10	Mega Gallade psychicfightingmega Low Kick / Sacred Sword	Low Kick / Sacred Sword+19 more movesets	54%	3462.8%	0.07	0:13	100%	4,521	49.4	621
11	Mega Sceptile grassdragonmega Bullet Seed / Frenzy Plant	Bullet Seed / Frenzy Plant+11 more movesets	49%	3432.8%	0.07	0:13	100%	4,056	49.4	627
12	Zamazenta (Crowned Shield) fightingsteel Metal Claw / Behemoth Bash	Metal Claw / Behemoth Bash+7 more movesets	60%	3353.6%	0.07	0:13	100%	4,172	55.5	722
13	Shadow Excadrill groundsteelshadow Metal Claw / Earthquake	Metal Claw / Earthquake+14 more movesets	51%	3322.9%	0.07	0:13	100%	3,244	47.2	619
14	Zacian (Crowned Sword) fairysteel Metal Claw / Behemoth Blade	Metal Claw / Behemoth Blade+7 more movesets	53%	3300.3%	0.07	0:13	100%	4,979	61.7	815
15	Mega Heracross bugfightingmega Counter / Close Combat	Counter / Close Combat+17 more movesets	47%	3229.4%	0.08	0:13	100%	4,814	46.6	629
16	Shadow Kingler watershadow Metal Claw / Crabhammer	Metal Claw / Crabhammer+14 more movesets	41%	3217.4%	0.08	0:14	100%	2,829	44.8	607
17	Keldeo waterfighting Low Kick / Secret Sword	Low Kick / Secret Sword+11 more movesets	50%	3210.3%	0.08	0:14	100%	3,698	49.5	672
18	Shadow Dialga steeldragonshadow Metal Claw / Iron Head	Metal Claw / Iron Head+5 more movesets	47%	3208.0%	0.08	0:14	100%	4,038	45.0	611
19	Mega Blaziken firefightingmega Counter / Aura Sphere	Counter / Aura Sphere+20 more movesets	45%	3186.9%	0.08	0:14	100%	4,161	55.7	764
20	Shadow Mewtwo psychicshadow Counter / Focus Blast	Counter / Focus Blast+23 more movesets	43%	3150.0%	0.08	0:14	100%	4,178	45.6	631
21	Shadow Blaziken firefightingshadow Counter / Focus Blast	Counter / Focus Blast+20 more movesets	40%	3150.0%	0.08	0:14	100%	2,848	44.2	611
22	Shadow Conkeldurr fightingshadow Counter / Focus Blast	Counter / Focus Blast+11 more movesets	45%	3118.5%	0.08	0:14	100%	3,337	45.0	629
23	Primal Groudon groundfiremega Mud Shot / Earthquake	Mud Shot / Earthquake+9 more movesets	46%	3114.0%	0.08	0:14	100%	5,902	43.2	605
24	Mega Metagross steelpsychicmega Bullet Punch / Meteor Mash	Bullet Punch / Meteor Mash+15 more movesets	50%	3114.0%	0.08	0:14	100%	4,911	47.5	665
25	Shadow Metagross steelpsychicshadow Bullet Punch / Meteor Mash	Bullet Punch / Meteor Mash+15 more movesets	47%	3114.0%	0.08	0:14	100%	3,791	49.3	690
26	Mega Swampert watergroundmega Water Gun / Hydro Cannon	Water Gun / Hydro Cannon+11 more movesets	49%	3114.0%	0.08	0:14	100%	4,401	43.6	610
27	Terrakion rockfighting Double Kick / Sacred Sword	Double Kick / Sacred Sword+11 more movesets	46%	3114.0%	0.08	0:14	100%	3,698	42.9	600
28	Pheromosa bugfighting Low Kick / Focus Blast	Low Kick / Focus Blast+7 more movesets	38%	3114.0%	0.08	0:14	100%	2,842	43.6	610
29	Mega Alakazam psychicmega Counter / Focus Blast	Counter / Focus Blast+17 more movesets	42%	3105.1%	0.08	0:14	100%	4,510	46.4	651
30	Kartana grasssteel Razor Leaf / Leaf Blade	Razor Leaf / Leaf Blade+14 more movesets	44%	3100.7%	0.08	0:14	100%	3,677	45.1	634

How accurate is this? Same top pick as pokebattler.com on 26 of 27 lists checked, 90% of its top tens shared; weakest on Mewtwo's default list (7 of 10).

Ranking. Our full ranking against the page pokebattler.com serves for the same boss and settings, on 27 boss and filter combinations read live (2026-10-04): 242 of 270 top-ten places shared, the same #1 on 26. On the six fixed reference bosses (read 2026-10-03): 85% top-ten overlap with its default filters, 83% with Shadow, Mega and Legendary on. A close top three is shown as a tie because the order inside it is below what we can measure.

Time to win. Graded with Pokebattler's own movesets against every boss moveset, average per boss: Tier 1 and 3 +0.1% to +1.2%; Tier 5 −2.9% to +1.3%; Mega −1.1% to +2.6%; Shadow Tier 5 −1.8% to +0.3%. One attacker can be off by more: median 1.6%, worst 15%, RMS per boss moveset 2.05%.

Known weak spots.

Mewtwo (Tier 5, default filters) shares 7 of Pokebattler's top 10: Absol, Incineroar and Salamence sit just outside ours, Polteageist, Cursola and Hisuian Typhlosion just inside.
Groudon (Tier 5, default filters) shares 7 of 10; its Grass and Water counters run 2-6% fast here.
Tier 5 times run about 2-3% fast for attackers that faint often, and 2-3% slow on Mega Charizard Y and Mega Beedrill, whose counters resist the boss.
Tier 1 lists are the least checked: Combee (Tier 1) shares only 3 of Pokebattler's top 10, with Gigalith first here where Pokebattler puts Rhyperior.

This boss on pokebattler.com. Boss-by-boss accuracy report.

Ranked 30 attackers in 0.1 s (50 Monte Carlo runs each, seed 1). Same boss on pokebattler.com. The same ranking as JSON: /api/raids/rank.