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
Kyurem-Black
DragonIce
OFFENSIVE CHECK
View matchup
116.224
85.8%
Standard error 5.59 points
▾
252+ Atk Kyurem-Black Fusion Bolt vs. 252 HP / 0 Def Ho-Oh: 320-378 (76.9 - 90.8%) -- guaranteed 2HKO
02
Garganacl
Rock
DEFENSIVE CHECK
View matchup
80.741
86.9%
Standard error 6.48 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
03
Arceus-Ground
Ground
DEFENSIVE CHECK
View matchup
909.507
69.3%
Standard error 2.59 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
04
Arceus-Water
Water
DEFENSIVE CHECK
View matchup
225.218
77.1%
Standard error 4.81 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
05
Arceus-Poison
Poison
DEFENSIVE CHECK
View matchup
160.522
70.6%
Standard error 5.03 points
▾
252+ Atk Ho-Oh Earthquake vs. 252 HP / 252+ Def Arceus-Poison: 152-180 (34.2 - 40.5%) -- guaranteed 3HKO
06
Arceus
Normal
DEFENSIVE CHECK
View matchup
1,094.853
58.5%
Standard error 2.53 points
▾
252+ Atk Ho-Oh Brave Bird vs. 252 HP / 252+ Def Arceus: 136-162 (30.6 - 36.4%) -- 58.2% chance to 3HKO
07
Glimmora
RockPoison
OFFENSIVE CHECK
View matchup
533.627
62.3%
Standard error 3.55 points
▾
0- SpA Glimmora Power Gem vs. 252 HP / 252+ SpD Ho-Oh: 204-244 (49 - 58.6%) -- 98% chance to 2HKO
08
Dondozo
Water
DEFENSIVE CHECK
View matchup
210.914
69.1%
Standard error 5.32 points
▾
252+ Atk Ho-Oh Brave Bird vs. 252 HP / 252+ Def Dondozo: 142-168 (28.1 - 33.3%) -- 91.1% chance to 4HKO after Leftovers recovery
09
Calyrex-Shadow
PsychicGhost
SOFT CHECK
View matchup
2,578.856
52.8%
Standard error 1.69 points
▾
252+ SpA Calyrex-Shadow Psyshock vs. 252 HP / 0 Def Ho-Oh: 187-222 (44.9 - 53.3%) -- 33.2% chance to 2HKO
10
Eternatus
PoisonDragon
OFFENSIVE CHECK
View matchup
377.854
62.1%
Standard error 4.20 points
▾
252+ SpA Eternatus Dynamax Cannon vs. 252 HP / 252+ SpD Ho-Oh: 103-123 (24.7 - 29.5%) -- 99.9% chance to 4HKO
11
Calyrex-Ice
PsychicIce
DEFENSIVE CHECK
View matchup
370.953
61.7%
Standard error 4.28 points
▾
252+ Atk Ho-Oh Sacred Fire vs. 252 HP / 252+ Def Calyrex-Ice: 194-230 (48 - 56.9%) -- 90.6% chance to 2HKO
12
Kyogre
Water
DEFENSIVE CHECK
View matchup
560.202
58.5%
Standard error 3.51 points
▾
252+ Atk Ho-Oh Brave Bird vs. 252 HP / 252+ Def Kyogre: 166-196 (41 - 48.5%) -- guaranteed 3HKO
13
Miraidon
ElectricDragon
SOFT CHECK
View matchup
3,347.58
50.1%
Standard error 1.49 points
▾
252+ SpA Hadron Engine Miraidon Electro Drift (133.3251953125 BP) vs. 252 HP / 252+ SpD Ho-Oh in Electric Terrain: 450-530 (108.1 - 127.4%) -- guaranteed OHKO
14
Koraidon
FightingDragon
SOFT CHECK
View matchup
1,972.255
51.3%
Standard error 1.93 points
▾
252+ Atk Orichalcum Pulse Koraidon Outrage vs. 252 HP / 0 Def Ho-Oh: 322-381 (77.4 - 91.5%) -- guaranteed 2HKO
15
Arceus-Fairy
Fairy
DEFENSIVE CHECK
View matchup
492.264
58.1%
Standard error 3.82 points
▾
252+ Atk Ho-Oh Brave Bird vs. 252 HP / 252+ Def Arceus-Fairy: 136-162 (30.6 - 36.4%) -- 58.2% chance to 3HKO
16
Zacian-Crowned
FairySteel
OFFENSIVE CHECK
View matchup
455.497
57.2%
Standard error 3.95 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
17
Grafaiai
PoisonNormal
OFFENSIVE CHECK
View matchup
106.825
63.4%
Standard error 5.98 points
▾
252+ Atk Grafaiai Knock Off (97.5 BP) vs. 252 HP / 0 Def Ho-Oh: 102-121 (24.5 - 29%) -- 99.9% chance to 4HKO
18
Glalie
Ice
DEFENSIVE CHECK
View matchup
38.729
67.9%
Standard error 7.50 points
▾
252+ Atk Ho-Oh Sacred Fire vs. 252 HP / 252+ Def Glalie: 300-354 (82.4 - 97.2%) -- guaranteed 2HKO
19
Gliscor
GroundFlying
SOFT CHECK
View matchup
1,074.171
48.3%
Standard error 2.62 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
20
Arceus-Dark
Dark
DEFENSIVE CHECK
View matchup
28.015
71.1%
Standard error 8.56 points
▾
252+ Atk Ho-Oh Brave Bird vs. 252 HP / 252+ Def Arceus-Dark: 136-162 (30.6 - 36.4%) -- 58.2% chance to 3HKO
21
Ursaluna
GroundNormal
OFFENSIVE CHECK
42.045
65.4%
Standard error 7.34 points
22
Toxapex
PoisonWater
DEFENSIVE CHECK
View matchup
165.265
61.0%
Standard error 6.31 points
▾
252+ Atk Ho-Oh Earthquake vs. 252 HP / 252+ Def Toxapex: 128-152 (42.1 - 50%) -- 0.4% chance to 2HKO
23
Necrozma-Dusk-Mane
PsychicSteel
OFFENSIVE CHECK
View matchup
249.619
56.4%
Standard error 5.40 points
▾
252+ Atk Necrozma-Dusk-Mane Photon Geyser vs. 252 HP / 0 Def Ho-Oh: 226-267 (54.3 - 64.1%) -- guaranteed 2HKO
24
Ho-Oh
FireFlying
SOFT CHECK
View matchup
2,920.092
40.9%
Standard error 1.57 points
▾
252+ Atk Ho-Oh Brave Bird vs. 252 HP / 0 Def Ho-Oh: 235-277 (56.4 - 66.5%) -- guaranteed 2HKO
25
Carbink
RockFairy
DEFENSIVE CHECK
View matchup
32.952
66.6%
Standard error 8.21 points
▾
252+ Atk Ho-Oh Earthquake vs. 252 HP / 252+ Def Carbink: 130-154 (42.7 - 50.6%) -- 2.3% chance to 2HKO
26
Terapagos
Normal
SOFT CHECK
View matchup
202.978
54.6%
Standard error 5.99 points
▾
252+ SpA Terapagos Tera Starstorm vs. 252 HP / 252+ SpD Ho-Oh: 73-87 (17.5 - 20.9%) -- possible 5HKO
27
Ditto
Normal
SOFT CHECK
View matchup
855.035
40.5%
Standard error 2.88 points
▾
Ditto vs. Ho-Oh: 0-0 (0 - 0%)
28
Giratina-Origin
GhostDragon
DEFENSIVE CHECK
View matchup
118.753
58.8%
Standard error 7.68 points
▾
252+ Atk Ho-Oh Brave Bird vs. 252 HP / 252+ Def Giratina-Origin: 156-184 (30.9 - 36.5%) -- 63.4% chance to 3HKO
29
Sneasler
FightingPoison
OFFENSIVE CHECK
View matchup
78.591
57.2%
Standard error 7.70 points
▾
252+ Atk Sneasler Dire Claw vs. 252 HP / 0 Def Ho-Oh: 157-186 (37.7 - 44.7%) -- guaranteed 3HKO
30
Incineroar
FireDark
SOFT CHECK
View matchup
203.343
50.2%
Standard error 6.03 points
▾
252+ Atk Incineroar Fake Out vs. 252 HP / 0 Def Ho-Oh: 49-58 (11.7 - 13.9%) -- possible 8HKO
Ranked #6 with 26.73% usage. Sorted by conservative score.