Ranked by reliability — blends KO rate with how often each Pokémon is matched up.
#
Checker
Encounters
Reliability
KO Rate
01
Serperior
Grass
DEFENSIVE COUNTER
20.566
74.6%
dies 9.59%
▾
252+ SpA Clefable Flamethrower vs. 252 HP / 252+ SpD Serperior: 130-154 (36.7 - 43.5%) -- 98.9% chance to 3HKO after Leftovers recovery
02
Victini
PsychicFire
DEFENSIVE COUNTER
23.894
73.2%
dies 9.06%
▾
0- Atk Clefable Knock Off (97.5 BP) vs. 252 HP / 0 Def Victini: 94-112 (23.2 - 27.7%) -- 75.4% chance to 4HKO
03
Tapu Lele
PsychicFairy
OFFENSIVE CHECK
23
71.5%
dies 9.41%
▾
252+ SpA Choice Specs Tapu Lele Psyshock vs. 252 HP / 0 Def Clefable in Psychic Terrain: 418-493 (106 - 125.1%) -- guaranteed OHKO
04
Celesteela
SteelFlying
DEFENSIVE COUNTER
64.851
71.4%
dies 7.75%
▾
252+ SpA Clefable Flamethrower vs. 252 HP / 252+ SpD Celesteela: 124-148 (31.1 - 37.1%) -- guaranteed 4HKO after Leftovers recovery
05
Manaphy
Water
DEFENSIVE COUNTER
20.962
70.6%
dies 9.95%
▾
252+ SpA Clefable Moonblast vs. 252 HP / 252+ SpD Manaphy: 100-118 (24.7 - 29.2%) -- 99.9% chance to 4HKO
06
Excadrill
GroundSteel
OFFENSIVE CHECK
84.616
69.0%
dies 7.08%
▾
252+ Atk Excadrill Iron Head vs. 252 HP / 0 Def Clefable: 384-452 (97.4 - 114.7%) -- 81.3% chance to OHKO
07
Heatran
FireSteel
OFFENSIVE CHECK
151.475
65.3%
dies 6.42%
▾
252+ SpA Heatran Magma Storm vs. 252 HP / 252+ SpD Clefable: 139-165 (35.2 - 41.8%) -- 83.5% chance to 3HKO after Leftovers recovery
08
Scizor-Mega
BugSteel
OFFENSIVE CHECK
22.832
62.2%
dies 10.15%
▾
252+ Atk Technician Scizor-Mega Bullet Punch vs. 252 HP / 0 Def Clefable: 312-368 (79.1 - 93.4%) -- guaranteed 2HKO after Leftovers recovery
09
Kyurem-Black
DragonIce
OFFENSIVE CHECK
25.646
61.0%
dies 9.63%
▾
252+ Atk Kyurem-Black Freeze Shock vs. 252 HP / 0 Def Clefable: 399-469 (101.2 - 119%) -- guaranteed OHKO
10
Kartana
GrassSteel
OFFENSIVE CHECK
95.727
59.6%
dies 8.45%
▾
252+ Atk Kartana Smart Strike vs. 252 HP / 0 Def Clefable: 420-494 (106.5 - 125.3%) -- guaranteed OHKO
11
Swampert-Mega
WaterGround
OFFENSIVE CHECK
45.399
58.3%
dies 7.32%
▾
252+ Atk Swampert-Mega Earthquake vs. 252 HP / 0 Def Clefable: 259-306 (65.7 - 77.6%) -- guaranteed 2HKO after Leftovers recovery
12
Tapu Koko
ElectricFairy
OFFENSIVE CHECK
115.66
57.5%
dies 7.86%
▾
252+ SpA Life Orb Tapu Koko Thunderbolt vs. 252 HP / 252+ SpD Clefable in Electric Terrain: 196-231 (49.7 - 58.6%) -- 71.9% chance to 2HKO after Leftovers recovery
13
Jirachi
SteelPsychic
SOFT CHECK
20.024
54.9%
dies 11.12%
▾
252+ Atk Jirachi Iron Head vs. 252 HP / 0 Def Clefable: 312-368 (79.1 - 93.4%) -- guaranteed 2HKO after Leftovers recovery
14
Magearna
SteelFairy
SOFT CHECK
216.331
54.1%
dies 5.83%
▾
0- Atk Magearna Iron Head vs. 252 HP / 0 Def Clefable: 192-228 (48.7 - 57.8%) -- 50.8% chance to 2HKO after Leftovers recovery
15
Gliscor
GroundFlying
SOFT CHECK
175.232
52.0%
dies 6.52%
▾
252+ Atk Gliscor Earthquake vs. 252 HP / 0 Def Clefable: 187-222 (47.4 - 56.3%) -- 30.5% chance to 2HKO after Leftovers recovery
16
Gastrodon
WaterGround
SOFT CHECK
24.776
50.6%
dies 10.04%
▾
0- Atk Gastrodon Earthquake vs. 252 HP / 0 Def Clefable: 108-127 (27.4 - 32.2%) -- 57.5% chance to 4HKO after Leftovers recovery
17
Greninja
WaterDark
SOFT CHECK
126.502
48.3%
dies 7.62%
▾
252+ SpA Choice Specs Greninja Hydro Pump vs. 252 HP / 252+ SpD Clefable: 195-229 (49.4 - 58.1%) -- 64.5% chance to 2HKO after Leftovers recovery
18
Rotom-Wash
ElectricWater
SOFT CHECK
22.693
48.3%
dies 10.49%
▾
252+ SpA Rotom-Wash Hydro Pump vs. 252 HP / 252+ SpD Clefable: 132-156 (33.5 - 39.5%) -- 17.3% chance to 3HKO after Leftovers recovery
19
Clefable
Fairy
SOFT CHECK
74.948
46.0%
dies 5.76%
▾
252+ SpA Clefable Moonblast vs. 252 HP / 252+ SpD Clefable: 106-126 (26.9 - 31.9%) -- 40.2% chance to 4HKO after Leftovers recovery
20
Skarmory
SteelFlying
SOFT CHECK
97.263
45.0%
dies 8.63%
▾
252+ Atk Skarmory Brave Bird vs. 252 HP / 0 Def Clefable: 202-238 (51.2 - 60.4%) -- 91.4% chance to 2HKO after Leftovers recovery
21
Tapu Fini
WaterFairy
SOFT CHECK
54.937
41.5%
dies 9.14%
▾
Tapu Fini Nature's Madness vs. 252 HP Clefable: 197-197 (50 - 50%) -- guaranteed 3HKO after Leftovers recovery
22
Chansey
Normal
SOFT CHECK
108.46
39.9%
dies 8.09%
▾
Chansey Seismic Toss vs. 252 HP Clefable: 100-100 (25.3 - 25.3%) -- guaranteed 5HKO after Leftovers recovery
23
Medicham-Mega
FightingPsychic
SOFT CHECK
85.106
36.0%
dies 8.90%
▾
252+ Atk Pure Power Medicham-Mega Zen Headbutt vs. 252 HP / 0 Def Clefable: 310-366 (78.6 - 92.8%) -- guaranteed 2HKO after Leftovers recovery
24
Reuniclus
Psychic
SOFT CHECK
46.437
35.8%
dies 8.43%
▾
252+ SpA Reuniclus Psyshock vs. 252 HP / 0 Def Clefable: 181-214 (45.9 - 54.3%) -- 5.9% chance to 2HKO after Leftovers recovery
25
Toxapex
PoisonWater
SOFT CHECK
336.091
34.9%
dies 4.41%
▾
252+ SpA Toxapex Scald vs. 252 HP / 252+ SpD Clefable: 64-76 (16.2 - 19.2%) -- possible 8HKO
26
43.214
34.4%
dies 9.46%
▾
Ditto vs. Clefable: 0-0 (0 - 0%)
27
Landorus-Therian
GroundFlying
SOFT CHECK
177.541
33.6%
dies 6.08%
▾
252+ Atk Landorus-Therian Explosion vs. 252 HP / 0 Def Clefable: 419-494 (106.3 - 125.3%) -- guaranteed OHKO
28
Ferrothorn
GrassSteel
SOFT CHECK
179.685
33.3%
dies 5.99%
▾
252+ Atk Ferrothorn Power Whip vs. 252 HP / 0 Def Clefable: 223-264 (56.5 - 67%) -- guaranteed 2HKO after Leftovers recovery
29
Cresselia
Psychic
SOFT CHECK
46.846
32.9%
dies 9.70%
▾
252+ SpA Cresselia Psyshock vs. 252 HP / 0 Def Clefable: 129-153 (32.7 - 38.8%) -- 4.7% chance to 3HKO after Leftovers recovery
30
Hippowdon
Ground
SOFT CHECK
21.62
30.8%
dies 9.93%
▾
252+ Atk Hippowdon Earthquake vs. 252 HP / 0 Def Clefable: 210-247 (53.2 - 62.6%) -- guaranteed 2HKO after Leftovers recovery
Ranked #20 with 8.34% usage. Sorted by reliability score.