#0800 · Gen 7 · Legendary

Necrozma (Dusk) — Best counters

Weaknesses

	Pokémon	Fast move	Charged move	Weather	Score
1	Blaziken (Mega)	fireFire Spin	fireBlast BurnELITE	Clear	10013.2
2	Gengar (Mega)	ghostLickELITE	ghostShadow Ball	Fog	9813.0
3	Charizard (Mega Y)	fireFire Spin	fireBlast BurnELITE	Clear	9712.8
4	Groudon (Primal)	groundMud Shot	groundPrecipice BladesELITE	Clear	9712.7
5	Absol (Mega)	darkSnarl	darkBrutal SwingELITE	Fog	9011.8
6	Blacephalon	fireIncinerate	fireOverheat	Clear	8911.7
7	Banette (Mega)	ghostHex	ghostShadow Ball	Fog	8611.3
8	Garchomp (Mega)	groundMud Shot	groundEarthquake	Clear	8611.3
9	Reshiram	fireFire Fang	fireFusion FlareELITE	Clear	8511.2
10	Landorus (Therian)	groundMud Shot	groundSandsear StormELITE	Clear	8411.0
11	Charizard (Mega X)	fireFire Spin	fireBlast BurnELITE	Clear	8310.9
12	Tyranitar (Mega)	darkBite	darkBrutal Swing	Fog	8310.9
13	Houndoom (Mega)	darkSnarl	fireFire Blast	Clear · partial	8010.5
14	Chandelure	fireFire Spin	ghostShadow Ball	Fog · partial	7810.3
15	Volcarona	fireFire Spin	fireOverheat	Clear	7610.0
16	Darmanitan (Standard)	fireFire Fang	fireOverheat	Clear	7610.0
17	Darkrai	darkSnarl	ghostShadow Ball	Fog	7610.0
18	Zoroark (Hisui)	darkSnarl	ghostShadow Ball	Fog	749.8
19	Groudon	groundMud Shot	groundPrecipice BladesELITE	Clear	749.7
20	Alakazam (Mega)	fightingCounterELITE	ghostShadow Ball	Fog · partial	749.7

Necrozma (Dusk) is weak to Ground (×1.6), Ghost (×1.6), Fire (×1.6), Dark (×1.6).
Clear weather boosts Fire moves ×1.2 — the best time to battle Necrozma (Dusk).

Rankings are estimated cycle DPS (attack stat × move damage ÷ cycle time, with STAB and type effectiveness). Not a full battle simulation.