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
Kyogre
Water
DEFENSIVE CHECK
View matchup
3,027.016
70.4%
Standard error 1.43 points
▾
252+ Atk Ho-Oh Brave Bird vs. 252 HP / 252+ Def Kyogre: 166-196 (41 - 48.5%) -- guaranteed 3HKO
02
Eternatus
PoisonDragon
OFFENSIVE CHECK
View matchup
1,466.043
72.2%
Standard error 2.01 points
▾
+1 252+ SpA Eternatus Meteor Beam vs. 252 HP / 252+ SpD Ho-Oh: 496-584 (119.2 - 140.3%) -- guaranteed OHKO
03
Arceus-Water
Water
DEFENSIVE CHECK
View matchup
595.976
76.0%
Standard error 3.01 points
▾
252+ Atk Ho-Oh Brave Bird vs. 252 HP / 252+ Def Arceus-Water: 136-162 (30.6 - 36.4%) -- 58.2% chance to 3HKO
04
Garganacl
Rock
DEFENSIVE CHECK
View matchup
270.029
79.3%
Standard error 3.99 points
▾
252+ Atk Ho-Oh Earthquake vs. 252 HP / 252+ Def Garganacl: 146-172 (36.1 - 42.5%) -- 93.2% chance to 3HKO after Leftovers recovery
05
Zekrom
DragonElectric
OFFENSIVE CHECK
View matchup
31.874
86.1%
Standard error 6.13 points
▾
252+ Atk Life Orb Zekrom Bolt Strike vs. 252 HP / 0 Def Ho-Oh: 736-868 (176.9 - 208.6%) -- guaranteed OHKO
06
Arceus-Electric
Electric
DEFENSIVE CHECK
View matchup
402.508
71.8%
Standard error 3.81 points
▾
252+ Atk Ho-Oh Earthquake vs. 252 HP / 252+ Def Arceus-Electric: 152-180 (34.2 - 40.5%) -- guaranteed 3HKO
07
Calyrex-Ice
PsychicIce
DEFENSIVE CHECK
View matchup
790.72
66.6%
Standard error 2.90 points
▾
252+ Atk Ho-Oh Flare Blitz vs. 252 HP / 252+ Def Calyrex-Ice: 234-276 (57.9 - 68.3%) -- guaranteed 2HKO
08
Tyranitar
RockDark
OFFENSIVE CHECK
View matchup
254.127
73.1%
Standard error 4.79 points
▾
252+ Atk Tyranitar Stone Edge vs. 252 HP / 0 Def Ho-Oh: 804-948 (193.2 - 227.8%) -- guaranteed OHKO
09
Lunala
PsychicGhost
OFFENSIVE CHECK
View matchup
1,499.455
61.9%
Standard error 2.17 points
▾
+1 252+ SpA Lunala Meteor Beam vs. 252 HP / 252+ SpD Ho-Oh: 476-560 (114.4 - 134.6%) -- guaranteed OHKO
10
Arceus-Ground
Ground
DEFENSIVE CHECK
View matchup
611.543
64.2%
Standard error 3.34 points
▾
252+ Atk Ho-Oh Brave Bird vs. 252 HP / 252+ Def Arceus-Ground: 136-162 (30.6 - 36.4%) -- 58.2% chance to 3HKO
11
Kyurem-Black
DragonIce
OFFENSIVE CHECK
View matchup
148.816
72.9%
Standard error 6.27 points
▾
252+ Atk Kyurem-Black Fusion Bolt vs. 252 HP / 0 Def Ho-Oh: 320-378 (76.9 - 90.8%) -- guaranteed 2HKO
12
Ursaluna
GroundNormal
OFFENSIVE CHECK
View matchup
204.386
68.9%
Standard error 5.31 points
▾
252+ Atk Ursaluna Facade vs. 252 HP / 0 Def Ho-Oh: 145-172 (34.8 - 41.3%) -- guaranteed 3HKO
13
Zacian-Crowned
FairySteel
SOFT CHECK
View matchup
1,711.401
52.8%
Standard error 2.08 points
▾
+1 252+ Atk Zacian-Crowned Wild Charge vs. 252 HP / 0 Def Ho-Oh: 392-462 (94.2 - 111%) -- 62.5% chance to OHKO
14
Necrozma-Dusk-Mane
PsychicSteel
SOFT CHECK
View matchup
1,469.99
52.7%
Standard error 2.25 points
▾
0- Atk Necrozma-Dusk-Mane Knock Off (97.5 BP) vs. 252 HP / 0 Def Ho-Oh: 102-120 (24.5 - 28.8%) -- 99.6% chance to 4HKO
15
Arceus
Normal
SOFT CHECK
View matchup
947.21
53.0%
Standard error 2.80 points
▾
252+ Atk Silk Scarf Arceus Double-Edge vs. 252 HP / 0 Def Ho-Oh: 267-315 (64.1 - 75.7%) -- guaranteed 2HKO
16
Koraidon
FightingDragon
SOFT CHECK
View matchup
3,851.892
47.2%
Standard error 1.39 points
▾
252+ Atk Orichalcum Pulse Koraidon Outrage vs. 252 HP / 0 Def Ho-Oh: 322-381 (77.4 - 91.5%) -- guaranteed 2HKO
17
Rayquaza
DragonFlying
OFFENSIVE CHECK
View matchup
102.004
66.6%
Standard error 6.35 points
▾
252+ Atk Rayquaza Dragon Ascent vs. 252 HP / 0 Def Ho-Oh: 262-309 (62.9 - 74.2%) -- guaranteed 2HKO
18
Dondozo
Water
DEFENSIVE CHECK
View matchup
236.451
61.2%
Standard error 5.33 points
▾
252+ Atk Ho-Oh Brave Bird vs. 252 HP / 252+ Def Dondozo: 142-168 (28.1 - 33.3%) -- 0.1% chance to 3HKO
19
Ho-Oh
FireFlying
SOFT CHECK
View matchup
3,677.365
44.0%
Standard error 1.42 points
▾
252+ Atk Ho-Oh Brave Bird vs. 252 HP / 0 Def Ho-Oh: 235-277 (56.4 - 66.5%) -- guaranteed 2HKO
20
Arceus-Flying
Flying
DEFENSIVE CHECK
View matchup
109.607
63.2%
Standard error 6.38 points
▾
252+ Atk Ho-Oh Brave Bird vs. 252 HP / 252+ Def Arceus-Flying: 136-162 (30.6 - 36.4%) -- 58.2% chance to 3HKO
21
Glimmora
RockPoison
OFFENSIVE CHECK
View matchup
207.442
60.0%
Standard error 5.83 points
▾
0- SpA Glimmora Power Gem vs. 252 HP / 252+ SpD Ho-Oh: 204-244 (49 - 58.6%) -- 98% chance to 2HKO
22
Arceus-Ghost
Ghost
SOFT CHECK
View matchup
380.763
53.6%
Standard error 4.41 points
▾
252+ SpA Spooky Plate Arceus-Ghost Judgment vs. 252 HP / 252+ SpD Ho-Oh: 108-127 (25.9 - 30.5%) -- guaranteed 4HKO
23
Arceus-Fairy
Fairy
SOFT CHECK
View matchup
1,063.841
45.4%
Standard error 2.61 points
▾
252+ SpA Pixie Plate Arceus-Fairy Judgment vs. 252 HP / 252+ SpD Ho-Oh: 54-63 (12.9 - 15.1%) -- possible 7HKO
24
Groudon
Ground
SOFT CHECK
View matchup
415.009
50.1%
Standard error 4.20 points
▾
252+ Atk Groudon Stone Edge vs. 252 HP / 0 Def Ho-Oh: 584-688 (140.3 - 165.3%) -- guaranteed OHKO
25
Terapagos
Normal
SOFT CHECK
View matchup
305.376
52.7%
Standard error 4.93 points
▾
252+ Atk Terapagos Rapid Spin vs. 252 HP / 0 Def Ho-Oh: 63-75 (15.1 - 18%) -- possible 6HKO
26
Chi-Yu
DarkFire
OFFENSIVE CHECK
View matchup
31.56
66.5%
Standard error 8.40 points
▾
252+ SpA Beads of Ruin Chi-Yu Dark Pulse vs. 252 HP / 252+ SpD Ho-Oh: 105-124 (25.2 - 29.8%) -- guaranteed 4HKO
27
Gliscor
GroundFlying
SOFT CHECK
View matchup
1,230.893
41.0%
Standard error 2.31 points
▾
252+ Atk Gliscor Knock Off (97.5 BP) vs. 252 HP / 0 Def Ho-Oh: 102-121 (24.5 - 29%) -- 99.9% chance to 4HKO
28
Mewtwo
Psychic
OFFENSIVE CHECK
View matchup
63.477
64.9%
Standard error 8.37 points
▾
252+ SpA Life Orb Mewtwo Psystrike vs. 252 HP / 0 Def Ho-Oh: 289-341 (69.4 - 81.9%) -- guaranteed 2HKO
29
Giratina-Origin
GhostDragon
SOFT CHECK
View matchup
715.366
44.2%
Standard error 3.20 points
▾
252+ Atk Griseous Core Giratina-Origin Poltergeist vs. 252 HP / 0 Def Ho-Oh: 244-288 (58.6 - 69.2%) -- guaranteed 2HKO
30
Deoxys-Attack
Psychic
SOFT CHECK
View matchup
403.942
47.7%
Standard error 4.30 points
▾
0- Atk Deoxys-Attack Rock Slide vs. 252 HP / 0 Def Ho-Oh: 356-420 (85.5 - 100.9%) -- 6.3% chance to OHKO
Ranked #6 with 30.06% usage. Sorted by conservative score.