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
Calyrex-Ice
PsychicIce
DEFENSIVE CHECK
View matchup
26.432
80.8%
Standard error 7.66 points
▾
0 Atk Wo-Chien Foul Play vs. 252 HP / 252+ Def Calyrex-Ice: 170-204 (42 - 50.4%) -- 1.2% chance to 2HKO
02
Ho-Oh
FireFlying
DEFENSIVE CHECK
View matchup
260.901
57.6%
Standard error 3.06 points
▾
252+ Atk Wo-Chien Knock Off (97.5 BP) vs. 252 HP / 252+ Def Ho-Oh: 102-120 (24.5 - 28.8%) -- 99.1% chance to 4HKO
03
Koraidon
FightingDragon
SOFT CHECK
View matchup
290.747
54.5%
Standard error 2.92 points
▾
252+ Atk Orichalcum Pulse Koraidon Collision Course (133.3251953125 BP) vs. 252 HP / 0 Def Tablets of Ruin Wo-Chien: 492-578 (131.5 - 154.5%) -- guaranteed OHKO
04
Arceus
Normal
DEFENSIVE CHECK
View matchup
133.286
58.9%
Standard error 4.26 points
▾
252+ Atk Wo-Chien Knock Off (97.5 BP) vs. 252 HP / 252+ Def Arceus: 84-99 (18.9 - 22.2%) -- possible 5HKO
05
Arceus-Fairy
Fairy
DEFENSIVE CHECK
View matchup
20.117
76.9%
Standard error 9.40 points
▾
0- SpA Wo-Chien Giga Drain vs. 252 HP / 0 SpD Arceus-Fairy: 60-72 (13.5 - 16.2%) -- possible 7HKO
06
Zacian-Crowned
FairySteel
OFFENSIVE CHECK
View matchup
44.019
61.0%
Standard error 7.35 points
▾
+1 252+ Atk Zacian-Crowned Play Rough vs. 252 HP / 0 Def Tablets of Ruin Wo-Chien: 404-476 (108 - 127.2%) -- guaranteed OHKO
07
Glimmora
RockPoison
OFFENSIVE CHECK
View matchup
30.326
64.6%
Standard error 8.68 points
▾
0- SpA Glimmora Power Gem vs. 252 HP / 252+ SpD Wo-Chien: 58-69 (15.5 - 18.4%) -- possible 8HKO
08
Miraidon
ElectricDragon
SOFT CHECK
View matchup
399.291
37.3%
Standard error 2.42 points
▾
252+ SpA Hadron Engine Miraidon Overheat vs. 252 HP / 252+ SpD Wo-Chien: 248-294 (66.3 - 78.6%) -- guaranteed 2HKO after Leftovers recovery
09
Calyrex-Shadow
PsychicGhost
SOFT CHECK
View matchup
416.696
33.4%
Standard error 2.31 points
▾
252+ SpA Calyrex-Shadow Draining Kiss vs. 252 HP / 252+ SpD Wo-Chien: 84-100 (22.4 - 26.7%) -- possible 5HKO
10
Smeargle
Normal
SOFT CHECK
View matchup
119.046
39.8%
Standard error 4.49 points
▾
252+ Atk Smeargle Nuzzle vs. 252 HP / 0 Def Tablets of Ruin Wo-Chien: 4-5 (1 - 1.3%)
11
Gliscor
GroundFlying
SOFT CHECK
View matchup
80.865
43.8%
Standard error 5.52 points
▾
252+ Atk Gliscor U-turn vs. 252 HP / 0 Def Tablets of Ruin Wo-Chien: 204-244 (54.5 - 65.2%) -- guaranteed 2HKO after Leftovers recovery
12
Skeledirge
FireGhost
DEFENSIVE CHECK
View matchup
31.801
55.8%
Standard error 8.81 points
▾
252+ Atk Wo-Chien Knock Off (97.5 BP) vs. 252 HP / 252+ Def Skeledirge: 188-224 (45.6 - 54.3%) -- 54.3% chance to 2HKO
13
Iron Treads
GroundSteel
SOFT CHECK
View matchup
129.508
30.6%
Standard error 4.05 points
▾
252+ Atk Iron Treads Ice Spinner vs. 252 HP / 0 Def Tablets of Ruin Wo-Chien: 130-154 (34.7 - 41.1%) -- 65.9% chance to 3HKO after Leftovers recovery
14
Eternatus
PoisonDragon
SOFT CHECK
View matchup
24.46
52.3%
Standard error 10.10 points
▾
252+ SpA Eternatus Sludge Bomb vs. 252 HP / 252+ SpD Wo-Chien: 204-242 (54.5 - 64.7%) -- guaranteed 2HKO after Leftovers recovery
15
Ditto
Normal
SOFT CHECK
View matchup
47.833
37.1%
Standard error 6.98 points
▾
Ditto vs. Wo-Chien: 0-0 (0 - 0%)
16
Wo-Chien
DarkGrass
SOFT CHECK
View matchup
22.358
49.8%
Standard error 10.57 points
▾
252+ Atk Wo-Chien Knock Off (97.5 BP) vs. 252 HP / 0 Def Wo-Chien: 65-77 (17.3 - 20.5%) -- possible 5HKO
17
Arceus-Ground
Ground
SOFT CHECK
View matchup
124.927
22.3%
Standard error 3.73 points
▾
252+ SpA Earth Plate Arceus-Ground Judgment vs. 252 HP / 252+ SpD Wo-Chien: 59-70 (15.7 - 18.7%) -- possible 8HKO
18
Alomomola
Water
SOFT CHECK
View matchup
95.546
21.7%
Standard error 4.22 points
▾
252+ Atk Alomomola Play Rough vs. 252 HP / 0 Def Tablets of Ruin Wo-Chien: 112-134 (29.9 - 35.8%) -- guaranteed 4HKO after Leftovers recovery
19
Hatterene
PsychicFairy
SOFT CHECK
View matchup
29.115
32.4%
Standard error 8.67 points
▾
252+ SpA Hatterene Draining Kiss vs. 252 HP / 252+ SpD Wo-Chien: 110-132 (29.4 - 35.2%) -- 99.9% chance to 4HKO after Leftovers recovery
20
Ting-Lu
DarkGround
SOFT CHECK
View matchup
80.877
12.1%
Standard error 3.62 points
▾
252+ Atk Ting-Lu Stone Edge vs. 252 HP / 0 Def Tablets of Ruin Wo-Chien: 80-95 (21.3 - 25.4%) -- possible 5HKO
21
Clodsire
PoisonGround
SOFT CHECK
View matchup
29.932
24.6%
Standard error 7.87 points
▾
252+ Atk Clodsire Earthquake vs. 252 HP / 0 Def Tablets of Ruin Wo-Chien: 46-55 (12.2 - 14.7%)
22
Incineroar
FireDark
SOFT CHECK
View matchup
20.337
29.7%
Standard error 10.13 points
▾
252+ Atk Incineroar Darkest Lariat vs. 252 HP / 0 Def Tablets of Ruin Wo-Chien: 52-62 (13.9 - 16.5%) -- possible 9HKO
23
Kyogre
Water
SOFT CHECK
View matchup
26.145
20.4%
Standard error 7.88 points
▾
252+ SpA Kyogre Ice Beam vs. 252 HP / 252+ SpD Wo-Chien: 140-166 (37.4 - 44.3%) -- guaranteed 3HKO after Leftovers recovery
24
Corviknight
FlyingSteel
SOFT CHECK
View matchup
23.28
20.3%
Standard error 8.34 points
▾
252+ Atk Corviknight U-turn vs. 252 HP / 0 Def Tablets of Ruin Wo-Chien: 196-232 (52.4 - 62%) -- 96.9% chance to 2HKO after Leftovers recovery
Ranked #29 with 5.29% usage. Sorted by conservative score.