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
Sinistcha
GrassGhost
OFFENSIVE CHECK
20.89
88.7%
checker faints 6.92%
▾
252+ SpA Sinistcha Shadow Ball vs. 252 HP / 252+ SpD Skarmory: 124-147 (37.1 - 44%) -- guaranteed 3HKO
02
Skeledirge
FireGhost
DEFENSIVE COUNTER
88.046
86.7%
checker faints 6.13%
▾
252+ Atk Skarmory Brave Bird vs. 252 HP / 252+ Def Skeledirge: 112-133 (27.1 - 32.2%) -- guaranteed 4HKO
03
Talonflame
FireFlying
OFFENSIVE CHECK
57.179
83.0%
checker faints 4.97%
▾
252+ Atk Talonflame Flare Blitz vs. 252 HP / 0 Def Skarmory: 236-278 (70.6 - 83.2%) -- guaranteed 2HKO
04
Arcanine-Hisui
FireRock
OFFENSIVE CHECK
87.118
72.8%
checker faints 8.11%
▾
252+ Atk Choice Band Arcanine-Hisui Flare Blitz vs. 252 HP / 0 Def Skarmory: 440-522 (131.7 - 156.2%) -- guaranteed OHKO
05
Thundurus-Therian
ElectricFlying
OFFENSIVE CHECK
83.41
71.2%
checker faints 8.52%
▾
252+ SpA Thundurus-Therian Thunderbolt vs. 252 HP / 252+ SpD Skarmory: 318-374 (95.2 - 111.9%) -- 68.8% chance to OHKO
06
Latios
DragonPsychic
OFFENSIVE CHECK
169.294
70.8%
checker faints 6.02%
▾
252+ SpA Latios Thunderbolt vs. 252 HP / 252+ SpD Skarmory: 194-230 (58 - 68.8%) -- guaranteed 2HKO
07
Fezandipiti
PoisonFairy
DEFENSIVE COUNTER
55.459
64.4%
checker faints 8.99%
▾
252+ Atk Skarmory Brave Bird vs. 252 HP / 252+ Def Fezandipiti: 127-151 (33.4 - 39.7%) -- guaranteed 3HKO
08
Thundurus
ElectricFlying
OFFENSIVE CHECK
28.812
59.4%
checker faints 9.15%
▾
0- SpA Thundurus Thunderbolt vs. 252 HP / 252+ SpD Skarmory: 192-228 (57.4 - 68.2%) -- guaranteed 2HKO
09
Sandy Shocks
ElectricGround
OFFENSIVE CHECK
50.007
59.1%
checker faints 9.80%
▾
252+ SpA Sandy Shocks Thunderbolt vs. 252 HP / 252+ SpD Skarmory: 278-330 (83.2 - 98.8%) -- guaranteed 2HKO
10
Slowking
WaterPsychic
SOFT CHECK
79.294
54.9%
checker faints 9.65%
▾
252+ SpA Slowking Scald vs. 252 HP / 252+ SpD Skarmory: 109-129 (32.6 - 38.6%) -- 98% chance to 3HKO
11
Hydrapple
GrassDragon
SOFT CHECK
95.072
47.2%
checker faints 8.84%
▾
252+ SpA Hydrapple Draco Meteor vs. 252 HP / 252+ SpD Skarmory: 99-117 (29.6 - 35%) -- 17.8% chance to 3HKO
12
Slither Wing
BugFighting
SOFT CHECK
48.881
46.7%
checker faints 10.09%
▾
252+ Atk Slither Wing Flare Blitz vs. 252 HP / 0 Def Skarmory: 222-262 (66.4 - 78.4%) -- guaranteed 2HKO
13
Skarmory
SteelFlying
SOFT CHECK
67.308
44.9%
checker faints 8.54%
▾
0 Def Skarmory Body Press vs. 252 HP / 0 Def Skarmory: 58-69 (17.3 - 20.6%) -- possible 5HKO
14
Toxapex
PoisonWater
SOFT CHECK
56.835
36.2%
checker faints 9.02%
▾
252+ SpA Toxapex Surf vs. 252 HP / 252+ SpD Skarmory: 84-99 (25.1 - 29.6%) -- guaranteed 4HKO
15
Conkeldurr
Fighting
SOFT CHECK
91.464
34.7%
checker faints 8.50%
▾
252+ Atk Conkeldurr Thunder Punch vs. 252 HP / 0 Def Skarmory: 142-168 (42.5 - 50.2%) -- 1.2% chance to 2HKO
16
Weavile
DarkIce
SOFT CHECK
96.884
33.0%
checker faints 8.15%
▾
252+ Atk Weavile Triple Axel (120 BP) (3 hits) vs. 252 HP / 0 Def Skarmory: 152-183 (45.5 - 54.7%) -- 59.8% chance to 2HKO
17
Tinkaton
FairySteel
SOFT CHECK
103.332
31.3%
checker faints 7.82%
▾
252+ Atk Tinkaton Gigaton Hammer vs. 252 HP / 0 Def Skarmory: 75-88 (22.4 - 26.3%) -- 14.4% chance to 4HKO
18
Mandibuzz
DarkFlying
SOFT CHECK
153.909
24.0%
checker faints 5.84%
▾
252+ Atk Mandibuzz Knock Off (97.5 BP) vs. 252 HP / 0 Def Skarmory: 84-99 (25.1 - 29.6%) -- guaranteed 4HKO
19
Clodsire
PoisonGround
SOFT CHECK
128.701
23.0%
checker faints 6.26%
▾
20
Scizor
BugSteel
SOFT CHECK
30.026
22.1%
checker faints 7.58%
▾
252+ Atk Scizor Close Combat vs. 252 HP / 0 Def Skarmory: 107-127 (32 - 38%) -- 95.6% chance to 3HKO
21
Donphan
Ground
SOFT CHECK
81.707
20.3%
checker faints 7.66%
▾
252+ Atk Donphan Head Smash vs. 252 HP / 0 Def Skarmory: 127-150 (38 - 44.9%) -- guaranteed 3HKO
22
Metagross
SteelPsychic
SOFT CHECK
76.081
18.6%
checker faints 7.67%
▾
252+ Atk Choice Band Metagross Knock Off (97.5 BP) vs. 252 HP / 0 Def Skarmory: 134-158 (40.1 - 47.3%) -- guaranteed 3HKO
23
100.411
15.6%
checker faints 6.25%
▾
252+ Atk Lokix Knock Off (97.5 BP) vs. 252 HP / 0 Def Skarmory: 109-130 (32.6 - 38.9%) -- 99.4% chance to 3HKO
24
Excadrill
GroundSteel
SOFT CHECK
137.61
14.2%
checker faints 5.12%
▾
252+ Atk Mold Breaker Excadrill Rock Blast (3 hits) vs. 252 HP / 0 Def Skarmory: 69-84 (20.6 - 25.1%) -- 0.1% chance to 4HKO
25
Blissey
Normal
SOFT CHECK
64.781
8.8%
checker faints 4.90%
▾
Blissey Seismic Toss vs. 252 HP Skarmory: 100-100 (29.9 - 29.9%) -- guaranteed 4HKO
Ranked #6 with 18.83% usage. Sorted by reliability score.