#0214 · Gen 2

Heracross — Best counters

Weaknesses

flying×2.56 double weaknessfire×1.60psychic×1.60fairy×1.60

	Pokémon	Fast move	Charged move	Weather	Score
1	Rayquaza (Mega)	flyingAir Slash	flyingHurricaneELITE	Windy	10019.5
2	Pidgeot (Mega)	flyingGustELITE	flyingBrave Bird	Windy	9418.3
3	Enamorus (Incarnate)	fairyFairy Wind	flyingFly	Windy · partial	8316.2
4	Tornadus (Therian)	flyingGust	flyingBleakwind StormELITE	Windy	8216.1
5	Salamence (Mega)	fireFire Fang	flyingFly	Windy · partial	8015.5
6	Yveltal	flyingGust	flyingOblivion WingELITE	Windy	7915.4
7	Staraptor	flyingGustELITE	flyingBrave Bird	Windy	7815.3
8	Blaziken (Mega)	fireFire Spin	flyingBrave Bird	Windy · partial	7614.9
9	Charizard (Mega Y)	flyingAir Slash	fireBlast BurnELITE	Clear · partial	7614.8
10	Rayquaza	flyingAir Slash	flyingHurricaneELITE	Windy	7514.7
11	Enamorus (Therian)	fairyFairy Wind	flyingFly	Windy · partial	7414.4
12	Moltres	flyingWing Attack	flyingSky AttackELITE	Windy	7314.3
13	Honchkrow	flyingPeck	flyingBrave Bird	Windy	7314.3
14	Articuno (Galar)	psychicPsycho Cut	flyingFly	Windy	7214.1
15	Salamence	fireFire Fang	flyingFly	Windy · partial	7113.9
16	Braviary	flyingAir Slash	flyingFly	Windy	7113.8
17	Tornadus (Incarnate)	flyingAir Slash	flyingHurricane	Windy	7113.8
18	Alakazam (Mega)	psychicConfusion	psychicPsychicELITE	Windy	6913.4
19	Lugia	psychicExtrasensory	flyingAeroblastELITE	Windy	6612.9
20	Zacian (Crowned)	flyingAir Slash	fairyPlay Rough	Overcast · partial	6612.9

Flying hits for ×2.56 — Heracross's Bug/Fighting typing is double-weak, so those attackers outperform their score gap.
Watch its Fighting/Bug/Ground/Rock moves — counters like Rayquaza (Mega) and Pidgeot (Mega) take super-effective damage from them.
Windy weather boosts Flying moves ×1.2 — the best time to battle Heracross.

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