Observed target KO or switch rate is upstream p: the fraction of relevant encounters where the target was knocked out or switched out. Standard error is upstream d. The conservative score is p − 4d. These ladder observations do not prove a set-specific counter.
How to read this table
Use encounter count and standard error to judge the sample. Damage estimates below use inferred sets and remain separate from the observed ladder metric.
#
Checker
Encounters
Conservative score
Target KO or switch rate
01
Gholdengo
SteelGhost
OFFENSIVE CHECK
View matchup
213.601
78.9%
Standard error 4.74 points
▾
252+ SpA Gholdengo Make It Rain vs. 252 HP / 252+ SpD Clefable: 338-402 (85.7 - 102%) -- 12.5% chance to OHKO
02
Venusaur-Mega
GrassPoison
DEFENSIVE CHECK
View matchup
93.003
78.9%
Standard error 5.93 points
▾
252+ SpA Clefable Moonblast vs. 252 HP / 252+ SpD Venusaur-Mega: 44-52 (12 - 14.2%) -- possible 7HKO
03
Melmetal
Steel
DEFENSIVE CHECK
View matchup
61.499
82.0%
Standard error 6.89 points
▾
252+ SpA Clefable Moonblast vs. 252 HP / 252+ SpD Melmetal: 64-76 (13.5 - 16%) -- possible 7HKO
04
Kingambit
DarkSteel
DEFENSIVE CHECK
View matchup
129.334
73.0%
Standard error 5.51 points
▾
252+ SpA Clefable Moonblast vs. 252 HP / 252+ SpD Kingambit: 109-130 (26.9 - 32.1%) -- guaranteed 4HKO
05
Charizard-Mega-Y
FireFlying
OFFENSIVE CHECK
View matchup
32.177
68.6%
Standard error 8.18 points
▾
252+ SpA Charizard-Mega-Y Overheat vs. 252 HP / 252+ SpD Clefable in Sun: 313-370 (79.4 - 93.9%) -- guaranteed 2HKO after Leftovers recovery
06
Scizor-Mega
BugSteel
OFFENSIVE CHECK
View matchup
76.916
66.0%
Standard error 7.58 points
▾
252+ Atk Technician Scizor-Mega Bullet Punch vs. 252 HP / 0 Def Clefable: 312-368 (79.1 - 93.4%) -- guaranteed 2HKO after Leftovers recovery
07
Ursaluna
GroundNormal
OFFENSIVE CHECK
View matchup
29.827
67.1%
Standard error 8.60 points
▾
252+ Atk Ursaluna Headlong Rush vs. 252 HP / 0 Def Clefable: 295-348 (74.8 - 88.3%) -- guaranteed 2HKO after Leftovers recovery
08
Charizard-Mega-X
FireDragon
OFFENSIVE CHECK
View matchup
59.886
61.0%
Standard error 8.90 points
▾
252+ Atk Tough Claws Charizard-Mega-X Flare Blitz vs. 252 HP / 0 Def Clefable: 363-427 (92.1 - 108.3%) -- 50% chance to OHKO
09
Pecharunt
PoisonGhost
SOFT CHECK
View matchup
79.643
54.8%
Standard error 7.76 points
▾
252+ SpA Pecharunt Malignant Chain vs. 252 HP / 252+ SpD Clefable: 212-252 (53.8 - 63.9%) -- guaranteed 2HKO after Leftovers recovery
10
Ogerpon-Wellspring
GrassWater
OFFENSIVE CHECK
View matchup
94.889
58.1%
Standard error 8.60 points
▾
252+ Atk Wellspring Mask Ogerpon-Wellspring Power Whip vs. 252 HP / 0 Def Clefable: 316-373 (80.2 - 94.6%) -- guaranteed 2HKO after Leftovers recovery
11
Corviknight
FlyingSteel
SOFT CHECK
View matchup
127.024
47.0%
Standard error 5.86 points
▾
252+ Atk Corviknight Iron Head vs. 252 HP / 0 Def Clefable: 284-336 (72 - 85.2%) -- guaranteed 2HKO after Leftovers recovery
12
Slowking-Galar
PoisonPsychic
SOFT CHECK
View matchup
117.292
48.1%
Standard error 6.41 points
▾
252+ SpA Slowking-Galar Sludge Bomb vs. 252 HP / 252+ SpD Clefable: 222-264 (56.3 - 67%) -- guaranteed 2HKO after Leftovers recovery
13
Clodsire
PoisonGround
SOFT CHECK
View matchup
57.9
48.7%
Standard error 6.57 points
▾
252+ Atk Clodsire Poison Jab vs. 252 HP / 0 Def Clefable: 258-306 (65.4 - 77.6%) -- guaranteed 2HKO after Leftovers recovery
14
Iron Treads
GroundSteel
SOFT CHECK
View matchup
37.484
53.8%
Standard error 8.14 points
▾
252+ Atk Iron Treads Earthquake vs. 252 HP / 0 Def Clefable: 210-247 (53.2 - 62.6%) -- guaranteed 2HKO after Leftovers recovery
15
Kyurem
DragonIce
SOFT CHECK
View matchup
116.447
45.4%
Standard error 6.27 points
▾
252+ SpA Kyurem Ice Beam vs. 252 HP / 252+ SpD Clefable: 126-148 (31.9 - 37.5%) -- 0.2% chance to 3HKO after Leftovers recovery
16
Gliscor
GroundFlying
SOFT CHECK
View matchup
246.571
40.8%
Standard error 5.16 points
▾
252+ Atk Gliscor Earthquake vs. 252 HP / 0 Def Clefable: 187-222 (47.4 - 56.3%) -- 30.5% chance to 2HKO after Leftovers recovery
17
Heatran
FireSteel
SOFT CHECK
View matchup
83.698
48.6%
Standard error 7.15 points
▾
252+ SpA Heatran Eruption (150 BP) vs. 252 HP / 252+ SpD Clefable: 208-246 (52.7 - 62.4%) -- 99.6% chance to 2HKO after Leftovers recovery
18
Volcarona
BugFire
OFFENSIVE CHECK
View matchup
54.634
56.9%
Standard error 9.42 points
▾
252+ SpA Volcarona Flamethrower vs. 252 HP / 252+ SpD Clefable: 129-153 (32.7 - 38.8%) -- 4.7% chance to 3HKO after Leftovers recovery
19
Tornadus-Therian
Flying
SOFT CHECK
View matchup
87.074
47.6%
Standard error 7.41 points
▾
252+ SpA Tornadus-Therian Hurricane vs. 252 HP / 252+ SpD Clefable: 135-160 (34.2 - 40.6%) -- 53.5% chance to 3HKO after Leftovers recovery
20
Hatterene
PsychicFairy
OFFENSIVE CHECK
View matchup
51.427
56.1%
Standard error 9.78 points
▾
252+ SpA Hatterene Psychic Noise vs. 252 HP / 252+ SpD Clefable: 109-129 (27.6 - 32.7%) -- guaranteed 4HKO
21
Tapu Lele
PsychicFairy
SOFT CHECK
View matchup
57.213
54.1%
Standard error 9.27 points
▾
252+ SpA Tapu Lele Psyshock vs. 252 HP / 0 Def Clefable in Psychic Terrain: 243-286 (61.6 - 72.5%) -- guaranteed 2HKO after Leftovers recovery
22
Toxapex
PoisonWater
SOFT CHECK
View matchup
176.458
39.6%
Standard error 6.26 points
▾
252+ SpA Toxapex Sludge Bomb vs. 252 HP / 252+ SpD Clefable: 144-170 (36.5 - 43.1%) -- 98.5% chance to 3HKO after Leftovers recovery
23
Terapagos
Normal
SOFT CHECK
View matchup
69.468
47.5%
Standard error 8.37 points
▾
252+ Atk Terapagos Rapid Spin vs. 252 HP / 0 Def Clefable: 75-88 (19 - 22.3%) -- possible 6HKO
24
Zamazenta
Fighting
SOFT CHECK
View matchup
141.873
36.1%
Standard error 5.68 points
▾
252+ Atk Zamazenta Heavy Slam (120 BP) vs. 252 HP / 0 Def Clefable: 352-416 (89.3 - 105.5%) -- 37.5% chance to OHKO
25
Raging Bolt
ElectricDragon
SOFT CHECK
View matchup
88.341
34.6%
Standard error 7.03 points
▾
252+ SpA Choice Specs Raging Bolt Thunderbolt vs. 252 HP / 252+ SpD Clefable: 195-229 (49.4 - 58.1%) -- 64.5% chance to 2HKO after Leftovers recovery
26
Chansey
Normal
SOFT CHECK
View matchup
33.541
38.4%
Standard error 8.40 points
▾
Chansey Seismic Toss vs. 252 HP Clefable: 100-100 (25.3 - 25.3%) -- guaranteed 5HKO after Leftovers recovery
27
Landorus-Therian
GroundFlying
SOFT CHECK
View matchup
107.225
33.5%
Standard error 7.66 points
▾
252+ Atk Landorus-Therian Explosion vs. 252 HP / 0 Def Clefable: 419-494 (106.3 - 125.3%) -- guaranteed OHKO
28
Ferrothorn
GrassSteel
SOFT CHECK
View matchup
68.492
43.8%
Standard error 10.30 points
▾
252+ Atk Ferrothorn Power Whip vs. 252 HP / 0 Def Clefable: 223-264 (56.5 - 67%) -- guaranteed 2HKO after Leftovers recovery
29
Alomomola
Water
SOFT CHECK
View matchup
279.557
16.4%
Standard error 3.57 points
▾
252+ Atk Alomomola Flip Turn vs. 252 HP / 0 Def Clefable: 97-115 (24.6 - 29.1%) -- possible 5HKO
30
Dragonite
DragonFlying
SOFT CHECK
View matchup
141.477
26.7%
Standard error 6.32 points
▾
252+ Atk Dragonite Fly vs. 252 HP / 0 Def Clefable: 214-253 (54.3 - 64.2%) -- guaranteed 2HKO after Leftovers recovery
Ranked #41 with 4.84% usage. Sorted by conservative score.