Reliability ranks observed matchups; KO rate is how often the checker knocked out or forced out the target. “Checker faints” reports the checker's own observed death rate. Categories use matchup reliability plus offensive and defensive base stats.
How to read this table
Use encounter count to judge sample size. A high-reliability check with a modest KO rate can still be useful when it consistently forces switches or limits the target.
#
Checker
Encounters
Reliability
KO Rate
01
Gholdengo
SteelGhost
OFFENSIVE CHECK
135.709
79.3%
checker faints 5.74%
▾
252+ SpA Gholdengo Make It Rain vs. 252 HP / 252+ SpD Clefable: 338-402 (85.7 - 102%) -- 12.5% chance to OHKO
02
Ogerpon-Wellspring
GrassWater
OFFENSIVE CHECK
45.421
71.1%
checker faints 9.50%
▾
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
03
Weezing-Galar
PoisonFairy
DEFENSIVE COUNTER
26.084
62.5%
checker faints 9.48%
▾
252+ SpA Clefable Moonblast vs. 252 HP / 252+ SpD Neutralizing Gas Weezing-Galar: 62-73 (18.5 - 21.8%) -- possible 6HKO
04
Iron Treads
GroundSteel
DEFENSIVE COUNTER
20.557
62.4%
checker faints 10.69%
▾
252+ SpA Clefable Moonblast vs. 252 HP / 252+ SpD Iron Treads: 62-73 (16.1 - 19%) -- possible 6HKO
05
Blissey
Normal
DEFENSIVE COUNTER
27.38
55.5%
checker faints 9.50%
▾
0- Atk Clefable Knock Off (97.5 BP) vs. 252 HP / 0 Def Blissey: 196-231 (27.4 - 32.3%) -- guaranteed 4HKO
06
Slowking-Galar
PoisonPsychic
SOFT CHECK
123.086
53.2%
checker faints 7.64%
▾
252+ SpA Slowking-Galar Sludge Bomb vs. 252 HP / 252+ SpD Clefable: 222-264 (56.3 - 67%) -- guaranteed 2HKO after Leftovers recovery
07
Kingambit
DarkSteel
SOFT CHECK
36.497
51.5%
checker faints 8.27%
▾
252+ Atk Kingambit Iron Head vs. 252 HP / 0 Def Clefable: 384-452 (97.4 - 114.7%) -- 81.3% chance to OHKO
08
Gliscor
GroundFlying
SOFT CHECK
151.286
49.5%
checker faints 6.95%
▾
252+ Atk Gliscor Earthquake vs. 252 HP / 0 Def Clefable: 187-222 (47.4 - 56.3%) -- 30.5% chance to 2HKO after Leftovers recovery
09
Kyurem
DragonIce
SOFT CHECK
69.872
47.4%
checker faints 8.38%
▾
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
10
Toxapex
PoisonWater
SOFT CHECK
46.026
45.4%
checker faints 10.16%
▾
252+ Atk Toxapex Poison Jab vs. 252 HP / 0 Def Clefable: 236-278 (59.8 - 70.5%) -- guaranteed 2HKO after Leftovers recovery
11
Clefable
Fairy
SOFT CHECK
28.71
44.5%
checker faints 9.27%
▾
252+ SpA Clefable Moonblast vs. 252 HP / 252+ SpD Clefable: 106-126 (26.9 - 31.9%) -- 40.2% chance to 4HKO after Leftovers recovery
12
Corviknight
FlyingSteel
SOFT CHECK
102.471
44.3%
checker faints 8.33%
▾
252+ Atk Corviknight Brave Bird vs. 252 HP / 0 Def Clefable: 213-252 (54 - 63.9%) -- guaranteed 2HKO after Leftovers recovery
13
Pecharunt
PoisonGhost
SOFT CHECK
23.372
42.8%
checker faints 10.23%
▾
252+ SpA Pecharunt Malignant Chain vs. 252 HP / 252+ SpD Clefable: 212-252 (53.8 - 63.9%) -- guaranteed 2HKO after Leftovers recovery
14
Zamazenta
Fighting
SOFT CHECK
101.553
35.9%
checker faints 8.11%
▾
252+ Atk Zamazenta Heavy Slam (120 BP) vs. 252 HP / 0 Def Clefable: 352-416 (89.3 - 105.5%) -- 37.5% chance to OHKO
15
Dragapult
DragonGhost
SOFT CHECK
35.257
34.2%
checker faints 7.99%
▾
0- SpA Dragapult Shadow Ball vs. 252 HP / 252+ SpD Clefable: 60-72 (15.2 - 18.2%) -- possible 8HKO
16
Iron Valiant
FairyFighting
SOFT CHECK
23.145
32.3%
checker faints 9.72%
▾
252+ SpA Iron Valiant Moonblast vs. 252 HP / 252+ SpD Clefable: 126-148 (31.9 - 37.5%) -- 0.2% chance to 3HKO after Leftovers recovery
17
Dragonite
DragonFlying
SOFT CHECK
64.026
30.2%
checker faints 8.04%
▾
252+ Atk Dragonite Earthquake vs. 252 HP / 0 Def Clefable: 159-188 (40.3 - 47.7%) -- guaranteed 3HKO after Leftovers recovery
18
Samurott-Hisui
WaterDark
SOFT CHECK
22.471
29.1%
checker faints 9.59%
▾
252+ Atk Sharpness Samurott-Hisui Razor Shell vs. 252 HP / 0 Def Clefable: 229-270 (58.1 - 68.5%) -- guaranteed 2HKO after Leftovers recovery
19
Great Tusk
GroundFighting
SOFT CHECK
109.314
28.8%
checker faints 7.41%
▾
252+ Atk Great Tusk Headlong Rush vs. 252 HP / 0 Def Clefable: 280-331 (71 - 84%) -- guaranteed 2HKO after Leftovers recovery
20
Ting-Lu
DarkGround
SOFT CHECK
55.875
21.8%
checker faints 7.78%
▾
252+ Atk Ting-Lu Heavy Slam (120 BP) vs. 252 HP / 0 Def Clefable: 330-390 (83.7 - 98.9%) -- guaranteed 2HKO after Leftovers recovery
21
Alomomola
Water
SOFT CHECK
33.19
12.6%
checker faints 5.77%
▾
252+ Atk Alomomola Flip Turn vs. 252 HP / 0 Def Clefable: 97-115 (24.6 - 29.1%) -- possible 5HKO
Ranked #23 with 9.69% usage. Sorted by reliability score.