Ranked by reliability — blends KO rate with how often each Pokémon is matched up.
#
Checker
Encounters
Reliability
KO Rate
01
Melmetal
Steel
DEFENSIVE COUNTER
82.98
87.0%
dies 6.34%
▾
252+ SpA Hatterene Mystical Fire vs. 252 HP / 252+ SpD Melmetal: 176-208 (37.1 - 43.8%) -- guaranteed 3HKO
02
Ursaluna
GroundNormal
OFFENSIVE CHECK
61.179
86.3%
dies 6.14%
▾
252+ Atk Ursaluna Headlong Rush vs. 252 HP / 0 Def Hatterene: 237-280 (74.5 - 88%) -- guaranteed 2HKO after Leftovers recovery
03
Heatran
FireSteel
OFFENSIVE CHECK
74.682
84.8%
dies 7.13%
▾
252+ SpA Heatran Flash Cannon vs. 252 HP / 252+ SpD Hatterene: 204-242 (64.1 - 76.1%) -- guaranteed 2HKO after Leftovers recovery
04
Kingambit
DarkSteel
DEFENSIVE COUNTER
128.173
82.3%
dies 5.81%
▾
252+ SpA Hatterene Mystical Fire vs. 252 HP / 252+ SpD Kingambit: 150-178 (37.1 - 44%) -- guaranteed 3HKO
05
Gholdengo
SteelGhost
OFFENSIVE CHECK
203.217
82.1%
dies 4.64%
▾
252+ SpA Gholdengo Make It Rain vs. 252 HP / 252+ SpD Hatterene: 308-366 (96.8 - 115%) -- 87.5% chance to OHKO
06
Charizard-Mega-Y
FireFlying
OFFENSIVE CHECK
21.508
81.2%
dies 8.43%
▾
252+ SpA Charizard-Mega-Y Overheat vs. 252 HP / 252+ SpD Hatterene in Sun: 288-339 (90.5 - 106.6%) -- 43.8% chance to OHKO
07
Diancie-Mega
RockFairy
OFFENSIVE CHECK
56.437
79.0%
dies 7.36%
▾
0- Atk Diancie-Mega Diamond Storm vs. 252 HP / 0 Def Hatterene: 153-180 (48.1 - 56.6%) -- 34.4% chance to 2HKO after Leftovers recovery
08
Ogerpon-Wellspring
GrassWater
OFFENSIVE CHECK
56.81
76.1%
dies 7.91%
▾
252+ Atk Wellspring Mask Ogerpon-Wellspring Power Whip vs. 252 HP / 0 Def Hatterene: 255-301 (80.1 - 94.6%) -- guaranteed 2HKO after Leftovers recovery
09
Tapu Lele
PsychicFairy
OFFENSIVE CHECK
50.877
70.5%
dies 9.01%
▾
252+ SpA Tapu Lele Shadow Ball vs. 252 HP / 252+ SpD Hatterene: 136-162 (42.7 - 50.9%) -- guaranteed 3HKO after Leftovers recovery
10
Charizard-Mega-X
FireDragon
OFFENSIVE CHECK
43.637
67.0%
dies 10.02%
▾
252+ Atk Tough Claws Charizard-Mega-X Flare Blitz vs. 252 HP / 0 Def Hatterene: 292-345 (91.8 - 108.4%) -- 50% chance to OHKO
11
Terapagos
Normal
DEFENSIVE COUNTER
64.99
61.6%
dies 8.51%
▾
252+ SpA Hatterene Psyshock vs. 252 HP / 0 Def Terapagos: 171-202 (44.5 - 52.6%) -- 22.7% chance to 2HKO
12
Iron Treads
GroundSteel
DEFENSIVE COUNTER
72.93
59.5%
dies 8.12%
▾
252+ SpA Hatterene Mystical Fire vs. 252 HP / 252+ SpD Iron Treads: 170-200 (44.2 - 52%) -- guaranteed 3HKO after Leftovers recovery
13
Scizor-Mega
BugSteel
SOFT CHECK
25.467
53.3%
dies 9.89%
▾
252+ Atk Technician Scizor-Mega Bullet Punch vs. 252 HP / 0 Def Hatterene: 252-296 (79.2 - 93%) -- guaranteed 2HKO after Leftovers recovery
14
Raging Bolt
ElectricDragon
SOFT CHECK
82.1
53.1%
dies 9.45%
▾
252+ SpA Choice Specs Raging Bolt Thunderbolt vs. 252 HP / 252+ SpD Hatterene: 178-210 (55.9 - 66%) -- guaranteed 2HKO after Leftovers recovery
15
Chansey
Normal
SOFT CHECK
44.242
51.3%
dies 10.47%
▾
Chansey Seismic Toss vs. 252 HP Hatterene: 100-100 (31.4 - 31.4%) -- guaranteed 4HKO after Leftovers recovery
16
Dragonite
DragonFlying
SOFT CHECK
72.233
49.9%
dies 8.21%
▾
252+ Atk Dragonite Fly vs. 252 HP / 0 Def Hatterene: 172-204 (54 - 64.1%) -- guaranteed 2HKO after Leftovers recovery
17
Landorus-Therian
GroundFlying
SOFT CHECK
159.333
49.1%
dies 6.82%
▾
252+ Atk Landorus-Therian Explosion vs. 252 HP / 0 Def Hatterene: 338-398 (106.2 - 125.1%) -- guaranteed OHKO
18
Hatterene
PsychicFairy
SOFT CHECK
23.435
47.8%
dies 10.32%
▾
252+ SpA Hatterene Psyshock vs. 252 HP / 0 Def Hatterene: 78-92 (24.5 - 28.9%) -- possible 5HKO
19
Slowking-Galar
PoisonPsychic
SOFT CHECK
96.706
47.0%
dies 8.63%
▾
252+ SpA Slowking-Galar Sludge Bomb vs. 252 HP / 252+ SpD Hatterene: 204-240 (64.1 - 75.4%) -- guaranteed 2HKO after Leftovers recovery
20
Gliscor
GroundFlying
SOFT CHECK
265.423
46.8%
dies 5.13%
▾
252+ Atk Gliscor Earthquake vs. 252 HP / 0 Def Hatterene: 151-178 (47.4 - 55.9%) -- 25.8% chance to 2HKO after Leftovers recovery
21
Garchomp
DragonGround
SOFT CHECK
124.822
44.4%
dies 7.53%
▾
252+ Atk Garchomp Earthquake vs. 252 HP / 0 Def Hatterene: 187-222 (58.8 - 69.8%) -- guaranteed 2HKO after Leftovers recovery
22
Clefable
Fairy
SOFT CHECK
24.111
42.7%
dies 10.07%
▾
252+ SpA Clefable Moonblast vs. 252 HP / 252+ SpD Hatterene: 97-115 (30.5 - 36.1%) -- guaranteed 4HKO after Leftovers recovery
23
Iron Valiant
FairyFighting
SOFT CHECK
48.365
39.9%
dies 9.95%
▾
252+ SpA Iron Valiant Shadow Ball vs. 252 HP / 252+ SpD Hatterene: 128-152 (40.2 - 47.7%) -- guaranteed 3HKO after Leftovers recovery
24
Zamazenta
Fighting
SOFT CHECK
175.137
36.7%
dies 6.27%
▾
252+ Atk Zamazenta Heavy Slam (120 BP) vs. 252 HP / 0 Def Hatterene: 282-334 (88.6 - 105%) -- 31.3% chance to OHKO
25
Zapdos
ElectricFlying
SOFT CHECK
70.258
35.5%
dies 9.81%
▾
252+ SpA Zapdos Hurricane vs. 252 HP / 252+ SpD Hatterene: 135-160 (42.4 - 50.3%) -- guaranteed 3HKO after Leftovers recovery
26
Ting-Lu
DarkGround
SOFT CHECK
98.691
34.2%
dies 8.21%
▾
252+ Atk Ting-Lu Earthquake vs. 252 HP / 0 Def Hatterene: 168-198 (52.8 - 62.2%) -- 99.6% chance to 2HKO after Leftovers recovery
27
Great Tusk
GroundFighting
SOFT CHECK
110.287
30.5%
dies 7.58%
▾
252+ Atk Great Tusk Headlong Rush vs. 252 HP / 0 Def Hatterene: 228-268 (71.6 - 84.2%) -- guaranteed 2HKO after Leftovers recovery
28
Corviknight
FlyingSteel
SOFT CHECK
94.868
28.2%
dies 7.95%
▾
252+ Atk Corviknight Iron Head vs. 252 HP / 0 Def Hatterene: 230-272 (72.3 - 85.5%) -- guaranteed 2HKO after Leftovers recovery
29
Clodsire
PoisonGround
SOFT CHECK
22.026
26.6%
dies 9.41%
▾
252+ Atk Clodsire Poison Jab vs. 252 HP / 0 Def Hatterene: 210-248 (66 - 77.9%) -- guaranteed 2HKO after Leftovers recovery
30
Ferrothorn
GrassSteel
SOFT CHECK
56.62
23.3%
dies 7.91%
▾
252+ Atk Ferrothorn Power Whip vs. 252 HP / 0 Def Hatterene: 180-213 (56.6 - 66.9%) -- guaranteed 2HKO after Leftovers recovery
Ranked #24 with 8.02% usage. Sorted by reliability score.