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
512.997
80.9%
Standard error 2.89 points
▾
252+ SpA Gholdengo Shadow Ball vs. 252 HP / 252+ SpD Corviknight: 118-139 (29.5 - 34.7%) -- 10.4% chance to 3HKO
02
Charizard-Mega-Y
FireFlying
OFFENSIVE CHECK
View matchup
145.095
86.7%
Standard error 4.69 points
▾
252+ SpA Charizard-Mega-Y Overheat vs. 252 HP / 252+ SpD Corviknight in Sun: 650-768 (162.5 - 192%) -- guaranteed OHKO
03
Heatran
FireSteel
OFFENSIVE CHECK
View matchup
146.341
82.1%
Standard error 5.44 points
▾
252+ SpA Heatran Eruption (150 BP) vs. 252 HP / 252+ SpD Corviknight: 432-510 (108 - 127.5%) -- guaranteed OHKO
04
Latios-Mega
DragonPsychic
OFFENSIVE CHECK
View matchup
60.121
78.4%
Standard error 5.31 points
▾
252+ SpA Latios-Mega Mystical Fire vs. 252 HP / 252+ SpD Corviknight: 170-200 (42.5 - 50%) -- 0.4% chance to 2HKO
05
Terapagos
Normal
DEFENSIVE CHECK
View matchup
283.35
72.8%
Standard error 4.51 points
▾
252+ Atk Corviknight Brave Bird vs. 252 HP / 252+ Def Terapagos: 132-156 (34.3 - 40.6%) -- guaranteed 3HKO
06
Ceruledge
FireGhost
OFFENSIVE CHECK
View matchup
57.036
82.3%
Standard error 7.10 points
▾
252+ Atk Ceruledge Bitter Blade vs. 252 HP / 0 Def Corviknight: 302-356 (75.5 - 89%) -- guaranteed 2HKO
07
Sableye-Mega
DarkGhost
DEFENSIVE CHECK
View matchup
37.86
74.0%
Standard error 7.13 points
▾
252+ Atk Corviknight Brave Bird vs. 252 HP / 252+ Def Sableye-Mega: 102-120 (33.5 - 39.4%) -- guaranteed 3HKO
08
Charizard-Mega-X
FireDragon
OFFENSIVE CHECK
View matchup
118.537
73.0%
Standard error 6.92 points
▾
252+ Atk Tough Claws Charizard-Mega-X Flare Blitz vs. 252 HP / 0 Def Corviknight: 536-632 (134 - 158%) -- guaranteed OHKO
09
Tornadus-Therian
Flying
OFFENSIVE CHECK
View matchup
210.399
66.1%
Standard error 5.22 points
▾
252+ SpA Tornadus-Therian Heat Wave vs. 252 HP / 252+ SpD Corviknight: 162-192 (40.5 - 48%) -- guaranteed 3HKO
10
Volcarona
BugFire
OFFENSIVE CHECK
View matchup
151.165
67.8%
Standard error 6.19 points
▾
252+ SpA Volcarona Flamethrower vs. 252 HP / 252+ SpD Corviknight: 266-314 (66.5 - 78.5%) -- guaranteed 2HKO
11
Raging Bolt
ElectricDragon
OFFENSIVE CHECK
View matchup
229.49
62.9%
Standard error 5.43 points
▾
252+ SpA Choice Specs Raging Bolt Thunderbolt vs. 252 HP / 252+ SpD Corviknight: 404-476 (101 - 119%) -- guaranteed OHKO
12
Medicham-Mega
FightingPsychic
OFFENSIVE CHECK
View matchup
25.195
73.2%
Standard error 8.83 points
▾
252+ Atk Pure Power Medicham-Mega Close Combat vs. 252 HP / 0 Def Corviknight: 343-405 (85.7 - 101.2%) -- 12.5% chance to OHKO
13
Kyurem
DragonIce
OFFENSIVE CHECK
View matchup
269.724
58.0%
Standard error 5.12 points
▾
252+ SpA Kyurem Ice Beam vs. 252 HP / 252+ SpD Corviknight: 129-153 (32.2 - 38.2%) -- 95.7% chance to 3HKO
14
Diancie-Mega
RockFairy
OFFENSIVE CHECK
View matchup
180.817
60.7%
Standard error 5.92 points
▾
252+ SpA Diancie-Mega Mystical Fire vs. 252 HP / 252+ SpD Corviknight: 170-200 (42.5 - 50%) -- 0.4% chance to 2HKO
15
Melmetal
Steel
SOFT CHECK
View matchup
287.016
53.3%
Standard error 4.88 points
▾
252+ Atk Punching Glove Iron Fist Melmetal Thunder Punch vs. 252 HP / 0 Def Corviknight: 244-288 (61 - 72%) -- guaranteed 2HKO
16
Iron Valiant
FairyFighting
OFFENSIVE CHECK
View matchup
169.687
59.8%
Standard error 6.49 points
▾
252+ Atk Iron Valiant Close Combat vs. 252 HP / 0 Def Corviknight: 207-244 (51.7 - 61%) -- guaranteed 2HKO
17
Tapu Fini
WaterFairy
DEFENSIVE CHECK
View matchup
25.67
69.8%
Standard error 9.06 points
▾
252+ Atk Corviknight Brave Bird vs. 252 HP / 252+ Def Tapu Fini: 108-127 (31.3 - 36.9%) -- guaranteed 4HKO after Leftovers recovery
18
Hatterene
PsychicFairy
OFFENSIVE CHECK
View matchup
178.277
55.2%
Standard error 6.25 points
▾
252+ SpA Hatterene Mystical Fire vs. 252 HP / 252+ SpD Corviknight: 150-178 (37.5 - 44.5%) -- guaranteed 3HKO
19
Zapdos
ElectricFlying
SOFT CHECK
View matchup
379.672
47.4%
Standard error 4.33 points
▾
252+ SpA Zapdos Thunderbolt vs. 252 HP / 252+ SpD Corviknight: 254-300 (63.5 - 75%) -- guaranteed 2HKO
20
Hoopa-Unbound
PsychicDark
OFFENSIVE CHECK
View matchup
31.765
63.9%
Standard error 8.52 points
▾
252+ Atk Hoopa-Unbound Hyperspace Fury vs. 252 HP / 0 Def Corviknight: 202-238 (50.5 - 59.5%) -- guaranteed 2HKO
21
Ogerpon-Wellspring
GrassWater
SOFT CHECK
View matchup
276.321
48.1%
Standard error 5.12 points
▾
252+ Atk Wellspring Mask Ogerpon-Wellspring Ivy Cudgel vs. 252 HP / 0 Def Corviknight: 195-231 (48.7 - 57.7%) -- 95.7% chance to 2HKO
22
Zamazenta
Fighting
SOFT CHECK
View matchup
311.027
44.9%
Standard error 4.80 points
▾
252+ Atk Zamazenta Close Combat vs. 252 HP / 0 Def Corviknight: 195-231 (48.7 - 57.7%) -- 95.7% chance to 2HKO
23
Toxapex
PoisonWater
SOFT CHECK
View matchup
545.766
39.5%
Standard error 3.58 points
▾
252+ SpA Toxapex Scald vs. 252 HP / 252+ SpD Corviknight: 67-79 (16.7 - 19.7%) -- guaranteed 6HKO
24
Iron Moth
FirePoison
OFFENSIVE CHECK
View matchup
20.515
66.7%
Standard error 10.41 points
▾
252+ SpA Iron Moth Fiery Dance vs. 252 HP / 252+ SpD Corviknight: 242-288 (60.5 - 72%) -- guaranteed 2HKO
25
Urshifu-Rapid-Strike
FightingWater
SOFT CHECK
View matchup
118.903
53.9%
Standard error 7.63 points
▾
252+ Atk Urshifu-Rapid-Strike Close Combat vs. 252 HP / 0 Def Corviknight: 207-244 (51.7 - 61%) -- guaranteed 2HKO
26
Gengar
GhostPoison
SOFT CHECK
View matchup
151.34
49.7%
Standard error 6.80 points
▾
252+ SpA Gengar Shadow Ball vs. 252 HP / 252+ SpD Corviknight: 115-136 (28.7 - 34%) -- 1.8% chance to 3HKO
27
Tapu Lele
PsychicFairy
SOFT CHECK
View matchup
245.32
43.8%
Standard error 5.41 points
▾
252+ SpA Tapu Lele Hidden Power Fire vs. 252 HP / 252+ SpD Corviknight: 116-138 (29 - 34.5%) -- 4.7% chance to 3HKO
28
Moltres
FireFlying
SOFT CHECK
View matchup
141.559
50.4%
Standard error 7.13 points
▾
252+ SpA Moltres Flamethrower vs. 252 HP / 252+ SpD Corviknight: 254-300 (63.5 - 75%) -- guaranteed 2HKO
29
Pecharunt
PoisonGhost
SOFT CHECK
View matchup
102.204
46.6%
Standard error 6.78 points
▾
252+ SpA Pecharunt Shadow Ball vs. 252 HP / 252+ SpD Corviknight: 88-105 (22 - 26.2%) -- 6.9% chance to 4HKO
30
Clefable
Fairy
SOFT CHECK
View matchup
127.024
41.7%
Standard error 5.87 points
▾
252+ SpA Clefable Moonblast vs. 252 HP / 252+ SpD Corviknight: 54-65 (13.5 - 16.2%) -- possible 7HKO
Ranked #14 with 11.50% usage. Sorted by conservative score.