#0124 · Gen 1

Jynx — Best counters

Weaknesses

rock×1.60bug×1.60ghost×1.60steel×1.60fire×1.60dark×1.60

	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	Metagross (Mega)	bugFury Cutter	steelMeteor MashELITE	Snow · partial	9011.8
5	Absol (Mega)	darkSnarl	darkBrutal SwingELITE	Fog	9011.8
6	Blacephalon	fireIncinerate	fireOverheat	Clear	8911.7
7	Diancie (Mega)	rockRock Throw	rockRock Slide	Partly Cloudy	8711.5
8	Banette (Mega)	ghostHex	ghostShadow Ball	Fog	8611.3
9	Reshiram	fireFire Fang	fireFusion FlareELITE	Clear	8511.2
10	Tyranitar (Mega)	rockSmack DownELITE	darkBrutal Swing	Fog · partial	8411.0
11	Charizard (Mega X)	fireFire Spin	fireBlast BurnELITE	Clear	8310.9
12	Heracross (Mega)	bugStruggle Bug	bugMegahorn	Rainy	8210.8
13	Kyurem (White)	steelSteel Wing	fireFusion Flare	Clear · partial	8110.6
14	Pheromosa	bugBug Bite	bugBug Buzz	Rainy	8110.6
15	Houndoom (Mega)	darkSnarl	fireFire Blast	Clear · partial	8010.5
16	Chandelure	fireFire Spin	ghostShadow Ball	Fog · partial	7810.3
17	Metagross	bugFury Cutter	steelMeteor MashELITE	Snow · partial	7710.1
18	Volcarona	fireFire Spin	fireOverheat	Clear	7610.0
19	Darmanitan (Standard)	fireFire Fang	fireOverheat	Clear	7610.0
20	Darkrai	darkSnarl	ghostShadow Ball	Fog	7610.0

Jynx is weak to Rock (×1.6), Bug (×1.6), Ghost (×1.6), Steel (×1.6), Fire (×1.6), Dark (×1.6).
Watch its Ice/Psychic/Fairy/Fighting/Normal moves — counters like Blaziken (Mega) and Gengar (Mega) take super-effective damage from them.
Clear weather boosts Fire moves ×1.2 — the best time to battle Jynx.

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