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
70.904
85.6%
checker faints 7.12%
▾
252+ SpA Gholdengo Shadow Ball vs. 252 HP / 252+ SpD Corviknight: 118-139 (29.5 - 34.7%) -- 99.9% chance to 4HKO after Leftovers recovery
02
Moltres
FireFlying
OFFENSIVE CHECK
28.116
81.7%
checker faints 7.30%
▾
252+ SpA Moltres Flamethrower vs. 252 HP / 252+ SpD Corviknight: 254-300 (63.5 - 75%) -- guaranteed 2HKO after Leftovers recovery
03
Latios
DragonPsychic
OFFENSIVE CHECK
22.131
78.3%
checker faints 8.76%
▾
252+ SpA Expert Belt Latios Thunderbolt vs. 252 HP / 252+ SpD Corviknight: 206-245 (51.5 - 61.2%) -- 93.4% chance to 2HKO after Leftovers recovery
04
Archaludon
SteelDragon
DEFENSIVE COUNTER
61.296
75.3%
checker faints 7.77%
▾
0 Def Corviknight Body Press vs. 252 HP / 252+ Def Archaludon: 72-86 (18.7 - 22.3%) -- possible 6HKO
05
Landorus
GroundFlying
OFFENSIVE CHECK
30.463
66.8%
checker faints 8.53%
▾
252+ SpA Life Orb Sheer Force Landorus Focus Blast vs. 252 HP / 252+ SpD Corviknight: 178-211 (44.5 - 52.7%) -- guaranteed 3HKO after Leftovers recovery
06
Tornadus-Therian
Flying
OFFENSIVE CHECK
35.265
61.1%
checker faints 8.21%
▾
252+ SpA Tornadus-Therian Heat Wave vs. 252 HP / 252+ SpD Corviknight: 162-192 (40.5 - 48%) -- guaranteed 3HKO after Leftovers recovery
07
Articuno
IceFlying
DEFENSIVE COUNTER
39.952
59.6%
checker faints 7.76%
▾
252+ Atk Corviknight Iron Head vs. 252 HP / 252+ Def Articuno: 158-188 (41.1 - 48.9%) -- guaranteed 3HKO
08
Meowscarada
GrassDark
OFFENSIVE CHECK
34.127
56.9%
checker faints 8.48%
▾
252+ Atk Choice Band Protean Meowscarada Thunder Punch vs. 252 HP / 0 Def Corviknight: 344-408 (86 - 102%) -- 12.5% chance to OHKO
09
Dragapult
DragonGhost
SOFT CHECK
39.419
47.0%
checker faints 7.95%
▾
252+ Atk Dragapult Phantom Force vs. 252 HP / 0 Def Corviknight: 147-174 (36.7 - 43.5%) -- 98.9% chance to 3HKO after Leftovers recovery
10
Mamoswine
IceGround
SOFT CHECK
25.002
40.2%
checker faints 9.81%
▾
252+ Atk Never-Melt Ice Mamoswine Icicle Crash vs. 252 HP / 0 Def Corviknight: 177-208 (44.2 - 52%) -- guaranteed 3HKO after Leftovers recovery
11
Greninja
WaterDark
SOFT CHECK
160.578
39.5%
checker faints 6.59%
▾
252+ SpA Greninja Hydro Pump vs. 252 HP / 252+ SpD Corviknight: 135-159 (33.7 - 39.7%) -- 19% chance to 3HKO after Leftovers recovery
12
Gliscor
GroundFlying
SOFT CHECK
99.434
37.6%
checker faints 6.84%
▾
252+ Atk Gliscor Knock Off (97.5 BP) vs. 252 HP / 0 Def Corviknight: 90-106 (22.5 - 26.5%) -- 16.9% chance to 4HKO
13
Clodsire
PoisonGround
SOFT CHECK
24.3
35.1%
checker faints 9.68%
▾
14
Flutter Mane
GhostFairy
SOFT CHECK
66.041
34.1%
checker faints 8.22%
▾
252+ SpA Choice Specs Flutter Mane Thunder vs. 252 HP / 252+ SpD Corviknight: 326-384 (81.5 - 96%) -- guaranteed 2HKO after Leftovers recovery
15
Alomomola
Water
SOFT CHECK
53.192
32.3%
checker faints 9.04%
▾
252+ Atk Alomomola Liquidation vs. 252 HP / 0 Def Corviknight: 102-121 (25.5 - 30.2%) -- 0.4% chance to 4HKO after Leftovers recovery
16
Ting-Lu
DarkGround
SOFT CHECK
32.423
28.9%
checker faints 7.96%
▾
252+ Atk Ting-Lu Payback (50 BP) vs. 252 HP / 0 Def Corviknight: 76-91 (19 - 22.7%) -- possible 6HKO
17
Toxapex
PoisonWater
SOFT CHECK
112.536
28.4%
checker faints 5.98%
▾
252+ SpA Toxapex Surf vs. 252 HP / 252+ SpD Corviknight: 75-88 (18.7 - 22%) -- possible 6HKO
18
Goodra-Hisui
SteelDragon
SOFT CHECK
49.796
26.6%
checker faints 8.85%
▾
0- SpA Goodra-Hisui Flamethrower vs. 252 HP / 252+ SpD Corviknight: 102-120 (25.5 - 30%) -- 0.1% chance to 4HKO after Leftovers recovery
19
Corviknight
FlyingSteel
SOFT CHECK
65.45
21.1%
checker faints 7.11%
▾
252+ Atk Corviknight Brave Bird vs. 252 HP / 0 Def Corviknight: 78-93 (19.5 - 23.2%) -- possible 6HKO
20
Slowking-Galar
PoisonPsychic
SOFT CHECK
39.711
16.7%
checker faints 5.93%
▾
252+ SpA Slowking-Galar Fire Blast vs. 252 HP / 252+ SpD Corviknight: 188-222 (47 - 55.5%) -- 14.8% chance to 2HKO after Leftovers recovery
Ranked #16 with 9.68% usage. Sorted by reliability score.